. A webmaster wants to know if a website he designed is showing increased page views per visit. A customer is randomly sent to one of two different websites, offering the same products, but with different designs. The page views are below:

web a	web b
9	10
4	13
14	2
7	3
2	7

a) Test the null hypothesis that the mean number of page visits is the same for the two websites. What do you conclude at alpha = 0.05?

b) Find a 95% confidence interval for the mean difference in page views from the two websites.

c) Where is 0 and what does that say about the null hypothesis that the mean difference is 0