14. Factors affecting power Aa Aa Suppose you are planning to use a test of the

Question

14. Factors affecting power Aa Aa Suppose you are planning to use a test of the population mean when the population standard deviation is known (a z test) to test the following one-tailed hypotheses. Ho: 0 Ha: > 0 Since you want to maximize the power of your study, you are considering which factors might increase power so that you can adjust your plans to incorporate them, if possible, before conducting your research The following are your considerations for increasing power. Fill in any missing words/values. (Hint: Remember that for this alternative hypothesis, you will reject the null hypothesis for large values of the test statistic.) increases the power of the z test, An increase in (such as using = .10 instead of -.05) null hypothesis. This change A decrease in (such as using -01 instead of -.05) Ing that power is increased.

Explanation / Answer

a) An increase in value of alpha....

b) Increase in M, value, increasesmore likely

c) denominator is /n, increases, sample size decreases or SD increases

d) All factors mentioned will get affected

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