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# The following MINITAB output presents the | Ch 6.13 - 10E

ISBN: 9780073401331 38

## Solution for problem 10E Chapter 6.13

Statistics for Engineers and Scientists | 4th Edition

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Problem 10E

The following MINITAB output presents the results of a power calculation for a test concerning a population mean μ.

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

b. Assume that the value of μ. used for the null hypothesis is μ = 3. For what alternate value of μ is the power calculated?

c. If the sample size were 25, would the power be less than 0.85, greater than 0.85, or is it impossible to tell from the output? Explain.

d. If the difference were 0.5, would the power be less than 0.90, greater than 0.90, or is it impossible to tell from the output? Explain.

e. If the sample size were 17, would the power be less than 0.85, greater than 0.85, or is it impossible to tell from the output? Explain.

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