Two at a Time [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2022-09-23 13:03 (77 d 12:06 ago) – Posting: # 23317
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Hi XH7081,

❝ Just to clarify, when you say "Yes", do you mean that total of 132 subjects (44 per arm) is correct, or total of 198 subjects (66 per arm) is correct?


The latter. The sample size functions of PowerTOST give always the total sample size. Therefore, 132 / 2 × 3 = 198. Sorry for the confusion caused.

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