The following MINITAB output presents the

Chapter 6, Problem 11E

(choose chapter or problem)

The following MINITAB output presents the results of a power calculation for a test of the difference between two means \(\mu_1-\mu_2\).

a. Is the power calculated for a one-tailed or two-tailed test?

b. If the sample sizes were 50 in each group, would the power be less than 0.9, greater than 0.9, or is it impossible to tell from the output? Explain.

c. If the difference were 4, would the power be less than 0.9, greater than 0.9, or is it impossible to tell from the output? Explain.

Equation Transcription:

Text Transcription:

mu_1=mu_2

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