QuestionQuestion

1. In a case in which the population standard deviation is known, and a Z test can be used, you are planning to perform a study to test the null hypothesis that Mu = 50. You plan to take a sample of size n=34. What will the power of the test be if alpha =.05 and the actual standardized effect side = .48 in the population?

2. Using the above data, what would be the minimum sample size n required to attain a power of at least 0.95?

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