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If the standard deviation had been larger, the power would have been larger.

If the standard deviation had been larger, the power would have been larger.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Consider the following display: Power and Sample Size 2-Sample t Test Testing mean 1 = mean 2 (versus not =) Calculating power for mean 1 = mean 2 + difference Alpha = 0.05 Assumed standard deviation = 2 Difference Sample Size Power 2 15 0.752923 The sample size is for each group. If the standard deviation had been larger, the power would have been larger. O True O False
Transcribed Image Text:Consider the following display: Power and Sample Size 2-Sample t Test Testing mean 1 = mean 2 (versus not =) Calculating power for mean 1 = mean 2 + difference Alpha = 0.05 Assumed standard deviation = 2 Difference Sample Size Power 2 15 0.752923 The sample size is for each group. If the standard deviation had been larger, the power would have been larger. O True O False
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