Power calculator for Paired samples t-test

Input
Required alpha level (P):
Observed Mean difference:
Standard deviation of differences:
Sample size:

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MedCalc Software Ltd. Power calculator for Paired samples t-test | MedCalc. https://www.medcalc.org/en/calc/power-paired-samples-t-test.php (Version 23.6.1; accessed July 15, 2026)

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