Calculate the sample size needed when 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. Analyze the result and decide if the study should be conducted with a smaller sample size. 

Explain your rationale? If the study is not worth doing with the smaller sample, discuss possible tradeoffs that may make the sample size feasible for your study?

Answer rating: 100% (QA)

To calculate the sample size needed for a onetailed ttest with two independent groups of equal size and a small effect size we need to use a power ana... View the full answer