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Designs (Counts)-2</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/download_icon.png</image:loc><image:caption>download_icon</image:caption><image:title>download_icon</image:title></image:image><lastmod>2025-02-15</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example/two-roc-curves</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2003-%20Img%2001-%20Two%20ROC%20Curves-1.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 03- Img 01- Two ROC Curves-1</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 03- Img 01- Two ROC Curves-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2003-%20Img%2003-%20Two%20ROC%20Curves.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 03- Img 03- Two ROC Curves</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 03- Img 03- Two ROC Curves</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2003-%20Img%2004-%20Two%20ROC%20Curves.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 03- Img 04- Two ROC Curves</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 03- Img 04- Two ROC Curves</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery 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Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><lastmod>2025-02-14</lastmod></url><url><loc>https://www.statsols.com/guides/trial-design-issues-for-phase-ii-trials</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery 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Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/November%20Webinar%20-%20Sample%20Size%20Allocation%20for%20Multi-Regional%20Clinical%20Trials.png</image:loc><image:caption>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:caption><image:title>November Webinar - Sample Size Allocation for Multi-Regional Clinical 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Size Calculator Example- nQuery- Example 13- Img 03- Two Group Test Comparing Incidence Rates using the Negative Binomial Model</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 13- Img 03- Two Group Test Comparing Incidence Rates using the Negative Binomial Model</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2013-%20Img%2002-%20Two%20Group%20Test%20Comparing%20Incidence%20Rates%20using%20the%20Negative%20Binomial%20Model.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 13- Img 02- Two Group Test Comparing Incidence Rates using the Negative Binomial Model</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 13- Img 02- Two Group Test Comparing Incidence Rates using the Negative Binomial Model</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2013-%20Img%2001-%20Two%20Group%20Test%20Comparing%20Incidence%20Rates%20using%20the%20Negative%20Binomial%20Model.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 13- Img 01- Two Group Test Comparing Incidence Rates using the Negative Binomial Model</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 13- Img 01- Two Group Test Comparing Incidence Rates using the Negative Binomial Model</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2013-%20Img%2004-%20Two%20Group%20Test%20Comparing%20Incidence%20Rates%20using%20the%20Negative%20Binomial%20Model.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 13- Img 04- Two Group Test Comparing Incidence Rates using the Negative Binomial Model</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 13- Img 04- Two Group Test Comparing Incidence Rates using the Negative Binomial Model</image:title></image:image><lastmod>2025-02-13</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example/simons-two-stage-design-2</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Two%20Stage%20Phase%20II%20(Simons%20Design)%20-%20%20Sample%20Size%20Example%202_Page_6_Image_0002.jpg</image:loc><image:caption>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_6_Image_0002</image:caption><image:title>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_6_Image_0002</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Two%20Stage%20Phase%20II%20(Simons%20Design)%20-%20%20Sample%20Size%20Example%202_Page_6_Image_0001.jpg</image:loc><image:caption>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_6_Image_0001</image:caption><image:title>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_6_Image_0001</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Two%20Stage%20Phase%20II%20(Simons%20Design)%20-%20%20Sample%20Size%20Example%202_Page_5_Image_0002.jpg</image:loc><image:caption>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_5_Image_0002</image:caption><image:title>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_5_Image_0002</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Two%20Stage%20Phase%20II%20(Simons%20Design)%20-%20%20Sample%20Size%20Example%202_Page_5_Image_0001.jpg</image:loc><image:caption>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_5_Image_0001</image:caption><image:title>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_5_Image_0001</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Two%20Stage%20Phase%20II%20(Simons%20Design)%20-%20%20Sample%20Size%20Example%202_Page_3_Image_0001.jpg</image:loc><image:caption>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_3_Image_0001</image:caption><image:title>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_3_Image_0001</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Unclassified/Two%20Stage%20Phase%20II%20(Simons%20Design)%20-%20%20Sample%20Size%20Example%202_Page_4_Image_0002.jpg</image:loc><image:caption>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_4_Image_0002</image:caption><image:title>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_4_Image_0002</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Two%20Stage%20Phase%20II%20(Simons%20Design)%20-%20%20Sample%20Size%20Example%202_Page_4_Image_0001.jpg</image:loc><image:caption>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_4_Image_0001</image:caption><image:title>Two Stage Phase II (Simons Design) -  Sample Size Example 2_Page_4_Image_0001</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><lastmod>2025-02-13</lastmod></url><url><loc>https://www.statsols.com/guides/improving-sample-size-using-bayesian-thinking</loc><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Sep%202022%20Webinar%20-%20Improving%20Sample%20Size%20Using%20Bayesian%20Thinking-2.png</image:loc><image:caption>Sep 2022 Webinar - Improving Sample Size Using Bayesian Thinking-2</image:caption><image:title>Sep 2022 Webinar - Improving Sample Size Using Bayesian Thinking-2</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback 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Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><lastmod>2024-10-07</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example/crt-two-proportions-randomized</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2005-%20Img%2003-%20CRT%20Proportions.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 05- Img 03- CRT Proportions</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 05- Img 03- CRT Proportions</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2005-%20Img%2002-%20CRT%20Two%20Proportions%20Inequality%20Completely%20Randomised.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 05- Img 02- CRT Two Proportions Inequality Completely Randomised</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 05- Img 02- CRT Two Proportions Inequality Completely Randomised</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2005-%20Img%2004%20-%20CRT%20Two%20Proportions%20Inequality%20Completely%20Randomised-1.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 05- Img 04 - CRT Two Proportions Inequality Completely Randomised-1</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 05- Img 04 - CRT Two Proportions Inequality Completely 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trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1.jpg</image:loc><image:caption>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:caption><image:title>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/5%20Essential%20Steps%20to%20Determine%20Sample%20Size%20&amp;%20Power.png</image:loc><image:caption>5 Essential Steps 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success</image:caption><image:title>The 5 essential steps to calculate sample size for clinical trial success</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Resources/How-to-calculate-sample-size-in-5-steps/two%20means%20plot%20-%20nQuery%20Sample%20Size%20Software.png</image:loc><image:caption>two means plot - nQuery Sample Size Software</image:caption><image:title>two means plot - nQuery Sample Size Software</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Resources/How-to-calculate-sample-size-in-5-steps/Formula%20Required%20for%20Sample%20Size.png</image:loc><image:caption>Formula Required for Sample Size</image:caption><image:title>Formula Required for Sample 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2</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Resources/How-to-calculate-sample-size-in-5-steps/step-3-choose-effect-size-sample-size-calculator.png</image:loc><image:caption>step-3-choose-effect-size-sample-size-calculator</image:caption><image:title>step-3-choose-effect-size-sample-size-calculator</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Resources/How-to-calculate-sample-size-in-5-steps/step-2-specify-parameters-sample-size-calculator.png</image:loc><image:caption>step-2-specify-parameters-sample-size-calculator</image:caption><image:title>step-2-specify-parameters-sample-size-calculator</image:title></image:image><lastmod>2025-02-18</lastmod><priority>0.5</priority></url><url><loc>https://www.statsols.com/guides/sample-size-for-pilot-studies</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery 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Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><lastmod>2025-02-27</lastmod></url><url><loc>https://www.statsols.com/articles/randomization-in-clinical-trials</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Webinars/Watch-Randomization-in-clinical-trials-watch-on-demand.jpg</image:loc><image:caption>Watch-Randomization-in-clinical-trials-watch-on-demand</image:caption><image:title>Watch-Randomization-in-clinical-trials-watch-on-demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery 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trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><lastmod>2025-02-15</lastmod></url><url><loc>https://www.statsols.com/guides/survival-stepped-wedge-and-mams-designs</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial 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Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><lastmod>2024-10-09</lastmod></url><url><loc>https://www.statsols.com/guides/considerations-for-cluster-randomized-designs</loc><image:image><image:loc>https://www.statsols.com/hubfs/September%20Webinar%20-%20Considerations%20for%20Cluster%20Randomized%20Designs.png</image:loc><image:caption>September Webinar - Considerations for Cluster Randomized Designs</image:caption><image:title>September Webinar - Considerations for Cluster Randomized Designs</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar 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Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/grpsqtl-3-savetrials.png</image:loc><image:caption>grpsqtl-3-savetrials</image:caption><image:title>grpsqtl-3-savetrials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Cookie-34.png</image:loc><image:caption>Cookie-34</image:caption><image:title>Cookie-34</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/grpsqtl-1-adaptive.png</image:loc><image:caption>grpsqtl-1-adaptive</image:caption><image:title>grpsqtl-1-adaptive</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Expert%20Insights-4.png</image:loc><image:caption>Expert Insights-4</image:caption><image:title>Expert 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complete trial design platform</image:title></image:image><lastmod>2025-03-18</lastmod><priority>0.5</priority></url><url><loc>https://www.statsols.com/templates/cox-regression</loc><image:image><image:loc>https://www.statsols.com/hubfs/download_icon.png</image:loc><image:caption>download_icon</image:caption><image:title>download_icon</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Trial%20Design%20Templates%20-%20Cox%20Regression.png</image:loc><image:caption>Trial Design Templates - Cox Regression</image:caption><image:title>Trial Design Templates - Cox Regression</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><lastmod>2025-02-15</lastmod></url><url><loc>https://www.statsols.com/guides/clinical-trial-design-trends-2025</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Clinical%20Trial%20Design%20Trends%20for%202025.png</image:loc><image:caption>Clinical Trial Design Trends for 2025</image:caption><image:title>Clinical Trial Design Trends for 2025</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/November%20Webinar%20-%20Sample%20Size%20Allocation%20for%20Multi-Regional%20Clinical%20Trials.png</image:loc><image:caption>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:caption><image:title>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:title></image:image><lastmod>2025-07-18</lastmod></url><url><loc>https://www.statsols.com/nquery-9.5-release-notes</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/Select%20Survival%20Tile%20View.png</image:loc><image:caption>Select Survival Tile View</image:caption><image:title>Select Survival Tile View</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Whats%20New%20in%20nQuery%209.5-1.png</image:loc><image:caption>Whats New in nQuery 9.5-1</image:caption><image:title>Whats New in nQuery 9.5-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/Maurer%20Example%20with%20plot.png</image:loc><image:caption>Maurer Example with plot</image:caption><image:title>Maurer Example with plot</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/Mixed%20Model.png</image:loc><image:caption>Mixed Model</image:caption><image:title>Mixed Model</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/Equivalence%20ANOVA.png</image:loc><image:caption>Equivalence ANOVA</image:caption><image:title>Equivalence ANOVA</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/Bayes%20Factor%20Equivalence.png</image:loc><image:caption>Bayes Factor Equivalence</image:caption><image:title>Bayes Factor Equivalence</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/customers-hero.png</image:loc><image:caption>customers-hero</image:caption><image:title>customers-hero</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/Vaccine%20Safety.png</image:loc><image:caption>Vaccine Safety</image:caption><image:title>Vaccine Safety</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/GST%20Survival%20Report.png</image:loc><image:caption>GST Survival Report</image:caption><image:title>GST Survival Report</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Whats%20New%20in%20nQuery%209.5.png</image:loc><image:caption>Whats New in nQuery 9.5</image:caption><image:title>Whats New in nQuery 9.5</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/nQuery%20Table%20Select%20-%20Adaptive%20-%20GST%20-%20GST3.png</image:loc><image:caption>nQuery Table Select - Adaptive - GST - GST3</image:caption><image:title>nQuery Table Select - Adaptive - GST - GST3</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Cookie-32-Hazel.svg</image:loc><image:caption>Cookie-32-Hazel</image:caption><image:title>Cookie-32-Hazel</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/Wilcoxon%20Pilot%20Study.png</image:loc><image:caption>Wilcoxon Pilot Study</image:caption><image:title>Wilcoxon Pilot Study</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Whats-New/v9.5/Select%20New%20Features%20Bioequivalence.png</image:loc><image:caption>Select New Features Bioequivalence</image:caption><image:title>Select New Features 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Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><lastmod>2025-04-04</lastmod></url><url><loc>https://www.statsols.com/guides/how-to-select-the-right-clinical-trial-design</loc><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/5%20Essential%20Steps%20to%20Determine%20Sample%20Size%20&amp;%20Power.png</image:loc><image:caption>5 Essential Steps to Determine Sample Size &amp; Power</image:caption><image:title>5 Essential Steps to Determine Sample Size &amp; Power</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1.jpg</image:loc><image:caption>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:caption><image:title>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20-%20Selecting%20the%20Right%20Clinical%20Trial%20Design.png</image:loc><image:caption>June Webinar - Selecting the Right Clinical Trial Design</image:caption><image:title>June Webinar - Selecting the Right Clinical Trial Design</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Optimize%20your%20adaptive%20trials-1.png</image:loc><image:caption>Optimize your adaptive trials-1</image:caption><image:title>Optimize your adaptive trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><lastmod>2025-06-23</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example/two-incidence-rates</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2008-%20Img%2004-%20Two%20Incidence%20Rates%20using%20Normal%20Approximation.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 08- Img 04- Two Incidence Rates using Normal Approximation</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 08- Img 04- Two Incidence Rates using Normal Approximation</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2008-%20Img%2003-%20Two%20Incidence%20Rates%20using%20Normal%20Approximation.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 08- Img 03- Two Incidence Rates using Normal Approximation</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 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Approximation</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2008-%20Img%2001-%20Two%20Incidence%20Rates%20using%20Normal%20Approximation.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 08- Img 01- Two Incidence Rates using Normal Approximation</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 08- Img 01- Two Incidence Rates using Normal Approximation</image:title></image:image><lastmod>2025-02-13</lastmod></url><url><loc>https://www.statsols.com/guides/sample-size-for-oncology-trials</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery 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Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/July%202021%20Webinar%20-Sample%20Size%20for%20Oncology%20Trials-1.png</image:loc><image:caption>July 2021 Webinar -Sample Size for Oncology Trials-1</image:caption><image:title>July 2021 Webinar -Sample Size for Oncology Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><lastmod>2024-10-09</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example/unblinded-ssr-two-proportions</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Unblinded%20Sample%20Size%20Re-estimation%20-%20Two%20Proportions%20-%20Sample%20Size%205.jpeg</image:loc><image:caption>Unblinded Sample Size Re-estimation - Two Proportions - Sample Size 5</image:caption><image:title>Unblinded Sample Size Re-estimation - Two Proportions - Sample Size 5</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Unblinded%20Sample%20Size%20Re-estimation%20-%20Two%20Proportions%20-%20Sample%20Size%207.jpeg</image:loc><image:caption>Unblinded Sample Size Re-estimation - Two Proportions - Sample Size 7</image:caption><image:title>Unblinded Sample Size Re-estimation - Two Proportions - Sample Size 7</image:title></image:image><lastmod>2025-02-13</lastmod></url><url><loc>https://www.statsols.com/guides/sample-size-for-regression-models</loc><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/November%20Webinar%20-%20Sample%20Size%20Allocation%20for%20Multi-Regional%20Clinical%20Trials.png</image:loc><image:caption>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:caption><image:title>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Feb%202023%20Webinar%20-%20Sample%20Size%20for%20Regression%20Models.png</image:loc><image:caption>Feb 2023 Webinar - Sample Size for Regression Models</image:caption><image:title>Feb 2023 Webinar - Sample Size for Regression Models</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><lastmod>2024-10-07</lastmod></url><url><loc>https://www.statsols.com/guides/sample-size-for-categorical-endpoints</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/March%202023%20Webinar%20-%20Sample%20Size%20for%20Categorical%20Endpoints.png</image:loc><image:caption>March 2023 Webinar - Sample Size for Categorical Endpoints</image:caption><image:title>March 2023 Webinar - Sample Size for Categorical Endpoints</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/November%20Webinar%20-%20Sample%20Size%20Allocation%20for%20Multi-Regional%20Clinical%20Trials.png</image:loc><image:caption>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:caption><image:title>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><lastmod>2024-10-07</lastmod></url><url><loc>https://www.statsols.com/templates/blinded-ssr-means</loc><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/download_icon.png</image:loc><image:caption>download_icon</image:caption><image:title>download_icon</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Trial%20Design%20Templates%20-%20Blinded%20SSR%20(Means).png</image:loc><image:caption>Trial Design Templates - Blinded SSR (Means)</image:caption><image:title>Trial Design Templates - Blinded SSR (Means)</image:title></image:image><lastmod>2025-02-15</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example/chi-squared-test</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2018-%20img%2002-%20Compute%20Power%20or%20Sample%20Size%20for%20Two-Sample%20Chi-Squared%20Test.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 18- img 02- Compute Power or Sample Size for Two-Sample Chi-Squared Test</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 18- img 02- Compute Power or Sample Size for Two-Sample Chi-Squared Test</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2018-%20Img%2001-%20Compute%20Power%20or%20Sample%20Size%20for%20Two-Sample%20Chi-Squared%20Test.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 18- Img 01- Compute Power or Sample Size for Two-Sample Chi-Squared Test</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 18- Img 01- Compute Power or Sample Size for Two-Sample Chi-Squared Test</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2018-%20img%2003-%20Compute%20Power%20or%20Sample%20Size%20for%20Two-Sample%20Chi-Squared%20Test.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 18- img 03- Compute Power or Sample Size for Two-Sample Chi-Squared Test</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 18- img 03- Compute Power or Sample Size for Two-Sample Chi-Squared Test</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Example%2018%20Img%2004.png</image:loc><image:caption>Example 18 Img 04</image:caption><image:title>Example 18 Img 04</image:title></image:image><lastmod>2025-02-14</lastmod></url><url><loc>https://www.statsols.com/trust</loc><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/contact-texture.png</image:loc><image:caption>contact-texture</image:caption><image:title>contact-texture</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo-1.png</image:loc><image:caption>nQuery Logo-1</image:caption><image:title>nQuery Logo-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Cookie-27-Hazel.svg</image:loc><image:caption>Cookie-27-Hazel</image:caption><image:title>Cookie-27-Hazel</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Resources/ISO%2027001/Statsols%20ISO%2027001%20Certified.jpg</image:loc><image:caption>Statsols ISO 27001 Certified</image:caption><image:title>Statsols ISO 27001 Certified</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><lastmod>2026-03-27</lastmod></url><url><loc>https://www.statsols.com/guides/sample-size-for-statistical-intervals</loc><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/May%202022%20Webinar%20-%20Sample%20Size%20for%20Statistical%20Intervals.png</image:loc><image:caption>May 2022 Webinar - Sample Size for Statistical Intervals</image:caption><image:title>May 2022 Webinar - Sample Size for Statistical Intervals</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/November%20Webinar%20-%20Sample%20Size%20Allocation%20for%20Multi-Regional%20Clinical%20Trials.png</image:loc><image:caption>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:caption><image:title>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><lastmod>2024-10-07</lastmod></url><url><loc>https://www.statsols.com/guides/crossover-cluster-randomized-trials</loc><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Feb%202022%20-%20Crossover%20&amp;%20Cluster%20Randomized%20Trials.png</image:loc><image:caption>Feb 2022 - Crossover &amp; Cluster Randomized Trials</image:caption><image:title>Feb 2022 - Crossover &amp; Cluster Randomized Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/November%20Webinar%20-%20Sample%20Size%20Allocation%20for%20Multi-Regional%20Clinical%20Trials.png</image:loc><image:caption>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:caption><image:title>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><lastmod>2024-09-27</lastmod></url><url><loc>https://www.statsols.com/guides/sample-size-for-measures-of-association</loc><image:image><image:loc>https://www.statsols.com/hubfs/May%202023%20Webinar%20-%20Sample%20Size%20for%20Measures%20of%20Association.png</image:loc><image:caption>May 2023 Webinar - Sample Size for Measures of Association</image:caption><image:title>May 2023 Webinar - Sample Size for Measures of Association</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/November%20Webinar%20-%20Sample%20Size%20Allocation%20for%20Multi-Regional%20Clinical%20Trials.png</image:loc><image:caption>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:caption><image:title>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><lastmod>2024-10-07</lastmod></url><url><loc>https://www.statsols.com/templates/fishers-test</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo-WithQualifier.png</image:loc><image:caption>nQuery Logo-WithQualifier</image:caption><image:title>nQuery Logo-WithQualifier</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Templates/Fishers%20Test%20template.jpg</image:loc><image:caption>Fishers Test template</image:caption><image:title>Fishers Test template</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/download_icon.png</image:loc><image:caption>download_icon</image:caption><image:title>download_icon</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Templates/Ordinal%20Endpoints.jpg</image:loc><image:caption>Ordinal Endpoints</image:caption><image:title>Ordinal Endpoints</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Templates/Binary%20Endpoints.jpg</image:loc><image:caption>Binary Endpoints</image:caption><image:title>Binary Endpoints</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Templates/Contingency%20%20Table.jpg</image:loc><image:caption>Contingency  Table</image:caption><image:title>Contingency  Table</image:title></image:image><lastmod>2023-04-06</lastmod></url><url><loc>https://www.statsols.com/articles/simons-two-stage-design</loc><image:image><image:loc>https://www.statsols.com/hubfs/Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1.jpg</image:loc><image:caption>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:caption><image:title>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Optimize%20your%20adaptive%20trials-1.png</image:loc><image:caption>Optimize your adaptive trials-1</image:caption><image:title>Optimize your adaptive trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Blog-Images/2019/simons-two-stage-designs/simons-two-stage-design-sample-size-for-phase-ii.jpg</image:loc><image:caption>simons-two-stage-design-sample-size-for-phase-ii</image:caption><image:title>simons-two-stage-design-sample-size-for-phase-ii</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/5%20Essential%20Steps%20to%20Determine%20Sample%20Size%20&amp;%20Power.png</image:loc><image:caption>5 Essential Steps to Determine Sample Size &amp; Power</image:caption><image:title>5 Essential Steps to Determine Sample Size &amp; Power</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><lastmod>2025-02-19</lastmod></url><url><loc>https://www.statsols.com/guides/2026-trends-in-clinical-trial-design</loc><image:image><image:loc>https://www.statsols.com/hubfs/5%20Essential%20Steps%20to%20Determine%20Sample%20Size%20&amp;%20Power.png</image:loc><image:caption>5 Essential Steps to Determine Sample Size &amp; Power</image:caption><image:title>5 Essential Steps to Determine Sample Size &amp; Power</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Screenshot%202026-02-25%20at%2016.46.31.png</image:loc><image:caption>Screenshot 2026-02-25 at 16.46.31</image:caption><image:title>Screenshot 2026-02-25 at 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Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/November%20Webinar%20-%20Sample%20Size%20Allocation%20for%20Multi-Regional%20Clinical%20Trials.png</image:loc><image:caption>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:caption><image:title>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/May%202022%20Webinar%20-%20Advanced%20Sample%20Size%20Determination%20for%20Counts%20and%20Rates.png</image:loc><image:caption>May 2022 Webinar - Advanced Sample Size Determination for Counts and Rates</image:caption><image:title>May 2022 Webinar - Advanced Sample Size Determination for Counts and 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Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Trial%20Design%20Templates-2-1.png</image:loc><image:caption>Trial Design Templates-2-1</image:caption><image:title>Trial Design Templates-2-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Cookie-34.png</image:loc><image:caption>Cookie-34</image:caption><image:title>Cookie-34</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Expert%20Insights-4.png</image:loc><image:caption>Expert Insights-4</image:caption><image:title>Expert 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img 4 - Subject Level Data-1</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 4 - Subject Level Data-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%2010A%20-%20Results%20-%20Events%20Vs%20Time.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 10A - Results - Events Vs Time</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 10A - Results - Events Vs Time</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%208%20-%20Dropout%20Model.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 8 - Dropout Model</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 8 - Dropout Model</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%207%20-%20Event%20Model.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 7 - Event Model</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 7 - Event Model</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%209%20-%20Simulation%20Controls-1.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 9 - Simulation Controls-1</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 9 - Simulation Controls-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%202%20-%20New%20Prediction.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 2 - New Prediction</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 2 - New Prediction</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%206%20-%20Accural%20Options-1.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 6 - Accural Options-1</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 6 - Accural Options-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%205%20-%20Site%20Specific%20Data-1.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 5 - Site Specific Data-1</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 5 - Site Specific Data-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%2011%20-%20Results%20-%20Drop%20Out%20Vs%20Time.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 11 - Results - Drop Out Vs Time</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 11 - Results - Drop Out Vs Time</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%201%20-%20Create%20Prediction.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 1 - Create Prediction</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 1 - Create Prediction</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%2012%20-%20Results%20-%20Summary-1.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 12 - Results - Summary-1</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 12 - Results - Summary-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Worked%20Example%20-%20Survival%20Trial%20Milestone%20Prediction%20-%20img%2010%20-%20Results%20-%20Sample%20Size%20Vs%20Time.png</image:loc><image:caption>Worked Example - Survival Trial Milestone Prediction - img 10 - Results - Sample Size Vs Time</image:caption><image:title>Worked Example - Survival Trial Milestone Prediction - img 10 - Results - Sample Size Vs Time</image:title></image:image><lastmod>2025-02-13</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20-%20The%20complete%20trial%20design%20platform.png</image:loc><image:caption>nQuery - The complete trial design platform</image:caption><image:title>nQuery - The complete trial design platform</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo-WithQualifier.png</image:loc><image:caption>nQuery Logo-WithQualifier</image:caption><image:title>nQuery 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Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/download_icon.png</image:loc><image:caption>download_icon</image:caption><image:title>download_icon</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><lastmod>2025-02-15</lastmod></url><url><loc>https://www.statsols.com/templates/clinical-prediction-model</loc><image:image><image:loc>https://www.statsols.com/hubfs/download_icon.png</image:loc><image:caption>download_icon</image:caption><image:title>download_icon</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery 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Power</image:caption><image:title>5 Essential Steps to Determine Sample Size &amp; Power</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Powering%20Survival%20Analysis%20Clinical%20Trials%20-1.png</image:loc><image:caption>Powering Survival Analysis Clinical Trials -1</image:caption><image:title>Powering Survival Analysis Clinical Trials -1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery 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Allocation for Multi-Regional Clinical Trials</image:caption><image:title>November Webinar - Sample Size Allocation for Multi-Regional Clinical Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Nov%202022%20Webinar%20-%20Guide%20to%20Sample%20Size%20Re-Estimation%20in%20Clinical%20Trials-1.png</image:loc><image:caption>Nov 2022 Webinar - Guide to Sample Size Re-Estimation in Clinical Trials-1</image:caption><image:title>Nov 2022 Webinar - Guide to Sample Size Re-Estimation in Clinical Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:caption><image:title>February Webinar - 2026 Trends in Clinical Trial Design - On Demand</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><lastmod>2024-10-07</lastmod></url><url><loc>https://www.statsols.com/privacy-policy</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo-1.png</image:loc><image:caption>nQuery Logo-1</image:caption><image:title>nQuery Logo-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20-%20The%20complete%20trial%20design%20platform.png</image:loc><image:caption>nQuery - The complete trial design platform</image:caption><image:title>nQuery - The complete trial design platform</image:title></image:image><lastmod>2026-03-27</lastmod><priority>0.5</priority></url><url><loc>https://www.statsols.com/hypothesis-testing-example/means-t-test-unequal-ns</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2007-%20Img%2002-%20Two%20Sample%20Student%E2%80%99s%20t-test%20%20(equal%20variances)%20%20Unequal%20n%E2%80%99s.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 07- Img 02- Two Sample Student’s t-test  (equal variances)  Unequal n’s</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 07- Img 02- Two Sample Student’s t-test  (equal variances)  Unequal 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35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2007-%20Img%2003-%20Two%20Sample%20Student%E2%80%99s%20t-test%20%20(equal%20variances)%20%20Unequal%20n%E2%80%99s.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 07- Img 03- Two Sample Student’s t-test  (equal variances)  Unequal n’s</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 07- Img 03- Two Sample Student’s t-test  (equal variances)  Unequal n’s</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2007-%20Img%2001-%20Two%20Sample%20Student%E2%80%99s%20t-test%20%20(equal%20variances)%20%20Unequal%20n%E2%80%99s.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 07- Img 01- Two Sample Student’s t-test  (equal variances)  Unequal n’s</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 07- Img 01- Two Sample Student’s t-test  (equal variances)  Unequal n’s</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><lastmod>2025-02-06</lastmod><priority>0.0</priority></url><url><loc>https://www.statsols.com/guides/sample-sizes-for-vaccine-trials-webinar</loc><image:image><image:loc>https://www.statsols.com/hubfs/5%20Essential%20Steps%20to%20Determine%20Sample%20Size%20&amp;%20Power.png</image:loc><image:caption>5 Essential Steps to Determine Sample Size &amp; Power</image:caption><image:title>5 Essential Steps to Determine Sample Size &amp; Power</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Optimize%20your%20adaptive%20trials-1.png</image:loc><image:caption>Optimize your adaptive trials-1</image:caption><image:title>Optimize your adaptive trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1.jpg</image:loc><image:caption>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:caption><image:title>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/May%20Webinar%20Sample%20Sizes%20for%20Vaccine%20Trials.png</image:loc><image:caption>May Webinar Sample Sizes for Vaccine Trials</image:caption><image:title>May Webinar Sample Sizes for Vaccine Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><lastmod>2025-05-09</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example/incidence-rates-poisson-model</loc><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2012-%20Img%2001-%20Test%20for%20the%20Ratio%20of%20Two%20Incidence%20Rates%20using%20the%20Poisson%20Model.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 12- Img 01- Test for the Ratio of Two Incidence Rates using the Poisson Model</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 12- Img 01- Test for the Ratio of Two Incidence Rates using the Poisson Model</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2012-%20img%2003-%20Test%20for%20the%20Ratio%20of%20Two%20Incidence%20Rates%20using%20the%20Poisson%20Model.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 12- img 03- Test for the Ratio of Two Incidence Rates using the Poisson Model</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 12- img 03- Test for the Ratio of Two Incidence Rates using the Poisson Model</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2012-%20Img%2002-%20Test%20for%20the%20Ratio%20of%20Two%20Incidence%20Rates%20using%20the%20Poisson%20Model.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 12- Img 02- Test for the Ratio of Two Incidence Rates using the Poisson Model</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 12- Img 02- Test for the Ratio of Two Incidence Rates using the Poisson Model</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2012-%20Img%2004-%20Test%20for%20the%20Ratio%20of%20Two%20Incidence%20Rates%20using%20the%20Poisson%20Model.png</image:loc><image:caption>Sample Size Calculator 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Randomised</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2004-%20Img%2004-%20CRT%20Two%20Proportions%20Inequality%20Completely%20Randomised.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 04- Img 04- CRT Two Proportions Inequality Completely Randomised</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 04- Img 04- CRT Two Proportions Inequality Completely Randomised</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2004-%20Img%2002-%20CRT%20Two%20Proportions%20Inequality%20Completely%20Randomised.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 04- Img 02- CRT Two Proportions Inequality Completely Randomised</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 04- Img 02- CRT Two Proportions Inequality Completely Randomised</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image 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trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/5%20Essential%20Steps%20to%20Determine%20Sample%20Size%20&amp;%20Power.png</image:loc><image:caption>5 Essential Steps to Determine Sample Size &amp; Power</image:caption><image:title>5 Essential Steps to Determine Sample Size &amp; Power</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1.jpg</image:loc><image:caption>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:caption><image:title>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery 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nQuery_</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/Custom%20GST%20Bound%20(Predictive%20Power%20Side-table%20only)-1.png</image:loc><image:caption>Custom GST Bound (Predictive Power Side-table only)-1</image:caption><image:title>Custom GST Bound (Predictive Power Side-table only)-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/Whats%20New%20in%20nQuery%209.7%20(1).png</image:loc><image:caption>Whats New in nQuery 9.7 (1)</image:caption><image:title>Whats New in nQuery 9.7 (1)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/Custom%20GST%20Bound%20(Custom%20CP%20In%20Context)-1.png</image:loc><image:caption>Custom GST Bound (Custom CP In Context)-1</image:caption><image:title>Custom GST Bound (Custom CP In Context)-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/Custom%20GST%20Bound%20(Reverse%20CP%20In%20Context)-1.png</image:loc><image:caption>Custom GST Bound (Reverse CP In Context)-1</image:caption><image:title>Custom GST Bound (Reverse CP In Context)-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/MRCT%20(Survival%20MRCT).png</image:loc><image:caption>MRCT (Survival MRCT)</image:caption><image:title>MRCT (Survival MRCT)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/Multiple%20Comparisons%20(MGE6).png</image:loc><image:caption>Multiple Comparisons (MGE6)</image:caption><image:title>Multiple Comparisons (MGE6)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/GST%20Survival%20Plot%20(Sample%20Size%20Events%20vs%20Time%20in-context).png</image:loc><image:caption>GST Survival Plot (Sample Size Events vs Time in-context)</image:caption><image:title>GST Survival Plot (Sample Size Events vs Time in-context)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/customers-hero.png</image:loc><image:caption>customers-hero</image:caption><image:title>customers-hero</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/Bioequivalence%20(Variance%20Parallel).png</image:loc><image:caption>Bioequivalence (Variance Parallel)</image:caption><image:title>Bioequivalence (Variance Parallel)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/GST%20Survival%20Plot%20(Survival%20vs%20Time).png</image:loc><image:caption>GST Survival Plot (Survival vs Time)</image:caption><image:title>GST Survival Plot (Survival vs Time)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/Bioequivalence%20(Variance%20Repeated).png</image:loc><image:caption>Bioequivalence (Variance Repeated)</image:caption><image:title>Bioequivalence (Variance Repeated)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Cookie-32-Hazel.svg</image:loc><image:caption>Cookie-32-Hazel</image:caption><image:title>Cookie-32-Hazel</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/nQuery-9.7/Vaccine%20(Multiple%20VE%20CRT).png</image:loc><image:caption>Vaccine (Multiple VE CRT)</image:caption><image:title>Vaccine (Multiple VE CRT)</image:title></image:image><lastmod>2026-06-03</lastmod><priority>0.5</priority></url><url><loc>https://www.statsols.com/guides/powering-phase-iv-clinical-trials</loc><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/June%20Webinar%20Playback%20-%20Design%2c%20Power%20&amp;%20Sample%20Sizes%20for%20Multi-Arm%20Trials-1.png</image:loc><image:caption>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:caption><image:title>June Webinar Playback - Design, Power &amp; Sample Sizes for Multi-Arm Trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%202026%20Trends%20in%20Clinical%20Trial%20Design%20-%20On%20Demand.png</image:loc><image:caption>February Webinar - 2026 Trends 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Trials</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Powering%20Phase%20IV%20Clinical%20Trials_Watch%20Now.png</image:loc><image:caption>Powering Phase IV Clinical Trials_Watch Now</image:caption><image:title>Powering Phase IV Clinical Trials_Watch Now</image:title></image:image><lastmod>2025-02-27</lastmod></url><url><loc>https://www.statsols.com/templates/linear-regression</loc><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/download_icon.png</image:loc><image:caption>download_icon</image:caption><image:title>download_icon</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Trial%20Design%20Templates%20-%20Linear%20Regression.png</image:loc><image:caption>Trial Design Templates - Linear Regression</image:caption><image:title>Trial Design Templates - Linear Regression</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><lastmod>2025-02-15</lastmod></url><url><loc>https://www.statsols.com/guides/sample-size-for-frequentist-and-bayesian-statistical-intervals</loc><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/February%20Webinar%20-%20Sample%20Size%20for%20Frequentist%20and%20Bayesian%20Statistical%20Intervals-3.png</image:loc><image:caption>February Webinar - Sample Size for Frequentist and Bayesian Statistical Intervals-3</image:caption><image:title>February Webinar - Sample Size for Frequentist and Bayesian Statistical Intervals-3</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Optimize%20your%20adaptive%20trials-1.png</image:loc><image:caption>Optimize your adaptive trials-1</image:caption><image:title>Optimize your adaptive trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/5%20Essential%20Steps%20to%20Determine%20Sample%20Size%20&amp;%20Power.png</image:loc><image:caption>5 Essential Steps to Determine Sample Size &amp; Power</image:caption><image:title>5 Essential Steps to Determine Sample Size &amp; Power</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1.jpg</image:loc><image:caption>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:caption><image:title>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:title></image:image><lastmod>2025-07-18</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example/means/respiratory/two-sample-students-t-test-equal-variances</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2011-%20Img%2002-%20Two%20Sample%20Student%E2%80%99s%20t-test%20(equal%20variances).png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 11- Img 02- Two Sample Student’s t-test (equal variances)</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 11- Img 02- Two Sample Student’s t-test (equal variances)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2011-%20Img%2003-%20Two%20Sample%20Student%E2%80%99s%20t-test%20(equal%20variances).png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 11- Img 03- Two Sample Student’s t-test (equal variances)</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 11- Img 03- Two Sample Student’s t-test (equal variances)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20In%20Use%20Background%20Web%20%20Opacity%2035.png</image:loc><image:caption>nQuery In Use Background Web  Opacity 35</image:caption><image:title>nQuery In Use Background Web  Opacity 35</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2011-%20Img%2001-%20Two%20Sample%20Student%E2%80%99s%20t-test%20(equal%20variances).png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 11- Img 01- Two Sample Student’s t-test (equal variances)</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 11- Img 01- Two Sample Student’s t-test (equal variances)</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2011-%20Img%2004-%20Two%20Sample%20Student%E2%80%99s%20t-test%20(equal%20variances).png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 11- Img 04- Two Sample Student’s t-test (equal variances)</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 11- Img 04- Two Sample Student’s t-test (equal variances)</image:title></image:image><lastmod>2025-02-13</lastmod></url><url><loc>https://www.statsols.com/guides/sample-sizes-for-vaccine-trials</loc><image:image><image:loc>https://www.statsols.com/hubfs/Optimize%20your%20adaptive%20trials-1.png</image:loc><image:caption>Optimize your adaptive trials-1</image:caption><image:title>Optimize your adaptive trials-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/5%20Essential%20Steps%20to%20Determine%20Sample%20Size%20&amp;%20Power.png</image:loc><image:caption>5 Essential Steps to Determine Sample Size &amp; Power</image:caption><image:title>5 Essential Steps to Determine Sample Size &amp; Power</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/May%20Webinar%20-%20Sample%20Sizes%20for%20Vaccine%20Trials%20-%20Playback.png</image:loc><image:caption>May Webinar - Sample Sizes for Vaccine Trials - Playback</image:caption><image:title>May Webinar - Sample Sizes for Vaccine Trials - Playback</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1.jpg</image:loc><image:caption>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:caption><image:title>Why-are-Group-Sequential-Designs-Useful---nQuery-Clinical-Trial-Design-Software-1</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><lastmod>2025-05-09</lastmod></url><url><loc>https://www.statsols.com/templates/non-inferiority-three-arm</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/download_icon.png</image:loc><image:caption>download_icon</image:caption><image:title>download_icon</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Trial%20Design%20Templates%20-%20Non-Inferiority%20Designs%20(3%20arm).png</image:loc><image:caption>Trial Design Templates - Non-Inferiority Designs (3 arm)</image:caption><image:title>Trial Design Templates - Non-Inferiority Designs (3 arm)</image:title></image:image><lastmod>2025-02-15</lastmod></url><url><loc>https://www.statsols.com/templates/unblinded-sample-size-re-estimation</loc><image:image><image:loc>https://www.statsols.com/hubfs/download_icon.png</image:loc><image:caption>download_icon</image:caption><image:title>download_icon</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/ProteinMetrics-Logo-Light.svg</image:loc><image:caption>ProteinMetrics-Logo-Light</image:caption><image:title>ProteinMetrics-Logo-Light</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.png</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/nquery-logo-dark.png</image:loc><image:caption>nquery-logo-dark</image:caption><image:title>nquery-logo-dark</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Trial%20Design%20Templates%20-%20Unblinded%20Sample%20Size%20Re-estimation.png</image:loc><image:caption>Trial Design Templates - Unblinded Sample Size Re-estimation</image:caption><image:title>Trial Design Templates - Unblinded Sample Size Re-estimation</image:title></image:image><lastmod>2025-02-15</lastmod></url><url><loc>https://www.statsols.com/hypothesis-testing-example/survival-analysis-group-sequential</loc><image:image><image:loc>https://www.statsols.com/hubfs/nQuery%20Logo.svg</image:loc><image:caption>nQuery Logo</image:caption><image:title>nQuery Logo</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2022-%20Img%2001-%20Group%20Sequential%20Test%20of%20Two%20Survivals.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 22- Img 01- Group Sequential Test of Two Survivals</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 22- Img 01- Group Sequential Test of Two Survivals</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2022-%20img%2007-%20Group%20Sequential%20Test%20of%20Two%20Survivals.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 22- img 07- Group Sequential Test of Two Survivals</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 22- img 07- Group Sequential Test of Two Survivals</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Hero-Banner-Images/nQuery%20Sample%20Size%20Software%20Image%20Large.png</image:loc><image:caption>nQuery Sample Size Software Image Large</image:caption><image:title>nQuery Sample Size Software Image Large</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2022-%20Img%2004-%20Group%20Sequential%20Test%20of%20Two%20Survivals.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 22- Img 04- Group Sequential Test of Two Survivals</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 22- Img 04- Group Sequential Test of Two Survivals</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2022-%20Img%2005-%20Group%20Sequential%20Test%20of%20Two%20Survivals.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 22- Img 05- Group Sequential Test of Two Survivals</image:caption><image:title>Sample Size Calculator Example- nQuery- Example 22- Img 05- Group Sequential Test of Two Survivals</image:title></image:image><image:image><image:loc>https://www.statsols.com/hubfs/Master-Images/Page-Images/Worked-Examples/nQuery%20Example%20Images/Sample%20Size%20Calculator%20Example-%20nQuery-%20Example%2022-%20Img%2006-%20Group%20Sequential%20Test%20of%20Two%20Survivals.png</image:loc><image:caption>Sample Size Calculator Example- nQuery- Example 22- Img 06- Group Sequential Test of Two Survivals</image:caption><image:title>Sample Size Calculator 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