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 accompanying table shows the data from five randomly chosen customers from each website. Assume that the data come from a distribution that is Normally distributed. Complete parts a through c below.

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Click the icon to view the data table of website page views per visit.

​a) Find a

95

​%

confidence interval for the mean​ difference,

mu

1minusmu

2​,

in page views from the two websites.

left parenthesis nothing comma nothing right parenthesis

​(Round to two decimal places as​ needed.)

​b) Is 0 within the confidence​ interval?

No

Yes

​c) What does the confidence interval suggest about the null hypothesis that the mean difference is​ 0?

A.

Reject

Upper H 0

since 0

is

a plausible value for the true mean difference.

B.

Fail to reject

Upper H 0

since 0

is

a plausible value for the true mean difference.

C.

Reject

Upper H 0

since 0

is not

a plausible value for the true mean difference.

D.

Fail to reject

Upper H 0

since 0

is not

a plausible value for the true mean difference.

Click to select your answer(s).

Website 1   Website 2
12   8
5   11
14   4
8   6
3   5

Answer 1