Calculate the sample size needed given these


Calculate the sample size needed given these factors:

one-tailed t-test with two independent groups of equal size
small effect size
alpha =.05
beta = .2
Assume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample half the size. Indicate the resulting alpha and beta. Present an argument that your study is worth doing with the smaller sample.

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Applied Statistics: Calculate the sample size needed given these
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