MedCalc

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Download our user-friendly MedCalc statistical software for your Windows desktop. Download

Free statistical calculators

Mean: the observed arithmetic mean.
Standard deviation: the observed standard deviation.
Sample size: the number of observations in the sample.

Comparison of means calculator

MedCalc Software Ltd. Comparison of means calculator. https://www.medcalc.org/calc/comparison_of_means.php (Version 23.1.3; accessed January 17, 2025)