A market analyst wants to know if the new website he designed is showing increas

Question

A market analyst wants to know if the new 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 table shows the data from five randomly chosen customers from each website. Assume that the data come from a distribution that is normally distributed.

Website 1

Website 2

12

10

4

11

13

3

6

2

3

6

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

2. Is 0 within the confidence interval?

3. What does the confidence interval suggest about the null hypothesis that the mean difference is 0? Choose correct answer below.

a. Fail to reject H0, since 0 is a plausible value for the true mean difference.

b. Reject H0, since 0 is a plausible value for the true mean difference.

c. Fail to reject H0, since 0 is not a plausible value for the true mean difference.

d. Reject H0, since 0 is not a plausible value for the true mean difference.

Website 1

Website 2

12

10

4

11

13

3

6

2

3

6

Explanation / Answer

A market analyst wants to know if the new website he designed is showing increas

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