For Exercises 8.49 to 8.51, see page 437; for 8.52 and 8.53, see pages 439440; for 8.54 to 8.56, see page 440; for 8.57 to 8.58, see page 444; for 8.59, see page 445; and for 8.60, see page 447.

Question 8.58

8.58 What about preference for Commercial B

Refer to Exercise 8.53 (page 440), where we changed the roles of the two commercials in our analysis. Answer the questions given in the previous exercise for the data altered in this way. Describe the results of the change.