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Power estimator for Comparison of proportions

Input
Required alpha level (P):  
Observed first proportion (%): 
Observed second proportion (%): 
Sample size in group 1: 
Sample size in group 2: 

How to cite this page

  • MedCalc Software Ltd. Power estimator for Comparison of proportions. https://www.medcalc.org/calc/power-comparison-of-proportions.php (Version 23.2.6; accessed June 14, 2025)

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© 2025 MedCalc Software Ltd