An Internet provider wondered if its cable Internet customers were significantly more satisfied with one or the

Question:

An Internet provider wondered if its cable Internet customers were significantly more satisfied with one or the other of its two packages-free e-mail and free basic TV. The company surveyed customers currently receiving free e-mail with cable Internet and customers currently receiving free basic TV with cable Internet. Satisfaction scores ranged from 1 to 10, based on answers to the survey questions. Now let's suppose that the company did not survey separate customers receiving free e-mail versus free basic TV. Rather, it first provided its cable Internet customers with the free e-mail package for 6 months, then provided the same customers with free basic TV for 6 months. Because the same customers experienced both conditions, this is a repeated measures design. (For our purposes, we will ignore other problems with this design, such as possible order effect.) Here are the satisfaction scores for 12 customers for each condition. Conduct a two-tailed t test at the .05 a level. Are customers significantly more satisfied with one package or the other?
For Information: In Exercise 8 in Module 20 and in Exercise 8 in Module 21,