Refer to Exercise 7.10 on page 334.

a. Use your answers from Exercise 7.10

(b) to determine the mean, μx¯ , of the variable x¯ for each of the possible sample sizes.

b. For each of the possible sample sizes, determine the mean, μx¯ , of the variable x¯, using only your answer from Exercise 7.10(a).

Applying the Concepts and Skills Exercises 7.41–7.45 require that you have done Exercises 7.11–7.15, respectively.