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Power estimator for Comparison of means

Input
Required alpha level (P):  
Observed Difference: 
Standard deviation group 1: 
Standard deviation group 2: 
Sample size in group 1: 
Sample size in group 2: 

How to cite this page

  • MedCalc Software Ltd. Power estimator for Comparison of means. https://www.medcalc.org/calc/power-comparison-of-means.php (Version 23.2.6; accessed June 15, 2025)

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