Exhibit 10-6
The management of a department store is interested in estimating the difference between the mean credit purchases of customers using the store's credit card versus those customers using a national major credit card. You are given the following information.
-Refer to Exhibit 10-6. At 95% confidence, the margin of error is
A)1.694
B)3.32
C)1.96
D)15

Question

Exhibit 10-6
The management of a department store is interested in estimating the difference between the mean credit purchases of customers using the store's credit card versus those customers using a national major credit card. You are given the following information. 
-Refer to Exhibit 10-6. At 95% confidence, the margin of error is
A)1.694 
B)3.32 
C)1.96 
D)15

Quizplus · Accepted Answer

The margin of error at 95% confidence is typically calculated using the standard error and the critical value from the z-distribution, which is approximately 1.96. However, without specific data from Exhibit 10-6, the choice that fits the context of a typical margin of error calculation is 3.32.

Exhibit 10-6 The Management of a Department Store Is Interested in Estimating