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Researchers want to repeat this experiment with the number of sample units balanced between samples in a completely randomized design with a two-sample t-test eventually to be used for statistical analysis. They also want to achieve 80% power to reject the null hypothesis (HO: no treatment effect) at alpha = 0.05 when the difference between sample means is at least 16%. Previous studies have estimated that the standard deviation of percent time spent huddling among male voles of this species is 29%. How many voles should be assigned to each sample?

Researchers want to repeat this experiment with the number of sample units balanced between samples in a completely randomized design with a two-sample t-test eventually to be used for statistical analysis. They also want to achieve 80% power to reject the null hypothesis (HO: no treatment effect) at alpha = 0.05 when the difference between sample means is at least 16%. Previous studies have estimated that the standard deviation of percent time spent huddling among male voles of this species is 29%. How many voles should be assigned to each sample?

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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Researchers want to repeat this experiment with the number of sample units balanced between samples in a completely randomized design with a two-sample t-test eventually to be used for statistical analysis. They also want to achieve 80% power to reject the null hypothesis (HO: no treatment effect) at alpha = 0.05 when the difference between sample means is at least 16%. Previous studies have estimated that the standard deviation of percent time spent huddling among male voles of this species is 29%. How many voles should be assigned to each sample?
Transcribed Image Text:Researchers want to repeat this experiment with the number of sample units balanced between samples in a completely randomized design with a two-sample t-test eventually to be used for statistical analysis. They also want to achieve 80% power to reject the null hypothesis (HO: no treatment effect) at alpha = 0.05 when the difference between sample means is at least 16%. Previous studies have estimated that the standard deviation of percent time spent huddling among male voles of this species is 29%. How many voles should be assigned to each sample?
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