Question

A journalist reported that the average amount of time that a French person spends eating lunch at a restaurant is 22 minutes. Perform a hypothesis test to determine if a difference exists between the average time an American spends eating lunch when compared to a person from France. The following data represents the​ time, in​ minutes, that random French and American diners spent at lunch. Assume that the population variances are equal. Assume Population 1 is defined as French diners and Population 2 is defined as American diners. What is the​ 90% confidence interval for the difference in population​ means?

American	21	17	17	20	25	16	20	16
French	24	18	20	28	18	29	17

A.

​(1.93, 4.06)

B.

​(−​0.75,

​6.75)

C.

​(1.52, 4.49)

D.

​(−​3.36,

​9.36)

Answer 1

optioin B is correct