# Question: A large used book store randomly selected 1 000 of its

A large used- book store randomly selected 1,000 of its customers and asked them to complete a survey about their satisfaction with the the merchandise in the store. The following data are from the 224 customers who returned the survey. Although the survey requested a considerable amount of information, the store was most interested in the frequency of purchases (number of books purchased in past 3 months) and the customer’s rating of the adequacy of book selection in the store. The data from the 224 surveys are given in the following table.

a. Is there evidence of a significant relationship between frequency of purchases and adequacy of selection? Use a = .05.

b. Describe the relationship between frequency of purchases and adequacy of selection (if any).

a. Is there evidence of a significant relationship between frequency of purchases and adequacy of selection? Use a = .05.

b. Describe the relationship between frequency of purchases and adequacy of selection (if any).

**View Solution:**## Answer to relevant Questions

Refer to Exercise 10.73. a. Were the conditions necessary to perform the test in Exercise 10.73 satisfied? b. If the conditions were not satisfied, perform an alternative analysis by combining some of the categories. c. ...Refer to Exercise 10.78. a. Compare the odds of a tumor appearing for each of the three rat groups. b. Place a 95% confidence interval on the odds ratio of a tumor appearing for the control group to appearing for the ...An entomologist was interested in studying the infestion of adult European red mites on apple trees in a Michigan orchard. She randomly selected 50 leaves from each of 10 similar apple trees in the orchard, examined the ...Refer to Exercise 11.9. a. Find the least- squares estimates of the slope and intercept in the output. b. What does the sign of the slope indicate about the relation between the speed of the drill and bit lifetime? c. ...Refer to Exercise 11.18. a. Fit the linear regression model y = β0 + β1 x + e, where y is the log biological recovery percentage. b. Compute an estimate of σe. c. Identify the standard errors of β0 and β1. In exercisePost your question