Question

In: Statistics and Probability

A market analyst wants to know if the new website he designed is showing increased page...

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.

Website 1 Website 2
11 8
6 12
14 4
5 5
3 7

) Find a 95​% confidence interval for the mean​ difference,muμ1minus−muμ2​,in page views from the two websites.eft parenthesis nothing comma nothing right parenthesis,

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

​b) Is 0 within the confidence​ interval?

No

YesYes

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

A.

Fail to rejectFail to reject

Upper H 0H0

since 0

is notis not

a plausible value for the true mean difference.

B.

RejectReject

Upper H 0H0

since 0

isis

a plausible value for the true mean difference.

C.

RejectReject

Upper H 0H0

since 0

is notis not

a plausible value for the true mean difference.

D.

Fail to rejectFail to reject

Upper H 0H0

since 0

isis

a plausible value for the true mean difference.

Solutions

Expert Solution

Solution: Here concept of confidence interval for difference in population means is used.

orchestra answered 1 year ago
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