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Determine the appropriate sample size using G*power for a study that will employ independent sample t-test, level of significance (alpha) = 0.05, po

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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Question

Determine the appropriate sample size using G*power for a study that will employ independent sample t-test, level of significance (alpha) = 0.05, power =0.80, and using the three levels of effect size for small effect size, use 0.20 b) for medium effect size, use 0.50 c) for large effect size, use 0.80 *Take screenshots of the result for each effect size.

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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