Question: In several exercises in this chapter, we considered the study of week 11 of the fall 2006 college football season, during which the population of

In several exercises in this chapter, we considered the study of week 11 of the fall 2006 college football season, during which the population of 53 Division I-A games had a mean spread (winning score minus losing score)

of 16.189, with a standard deviation of 12.128. The sample of four games that were played that week in the next-highest league, Division I-AA, had a mean of 8.75.

a. Calculate statistical power for this study using a onetailed test and a p level of 0.05.

b. What does the statistical power suggest about how we should view the findings of this study?

c. Using G*Power or an online power calculator, calculate statistical power for this study for a one-tailed test with a p level of 0.05.

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