Question
. A webmaster wants to know if a website he designed is showing increased page views per visit. A customer is randomly sent to one
. 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
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