The management of a department store is interested to estimate the difference in the amount of money spent by female and male shoppers.You are given the following information. A 95 percent confidence interval estimate for the difference between the average purchases of the customers using the two different credit cards is
A)49 to 64.
B)11.68 to 18.32.
C)125 to 140.
D)8 to 10.

Question

The management of a department store is interested to estimate the difference in the amount of money spent by female and male shoppers.You are given the following information.  A 95 percent confidence interval estimate for the difference between the average purchases of the customers using the two different credit cards is
A)49 to 64. 
B)11.68 to 18.32. 
C)125 to 140. 
D)8 to 10.

Quizplus · Accepted Answer

The question asks for the difference between the amount of money spent by female and male shoppers, but the given information only provides a confidence interval for the difference between average purchases of customers using two different credit cards, which may or may not be gender-specific. Therefore, none of the answer choices can be confidently selected.

The Management of a Department Store Is Interested to Estimate