Question

MC Qu. 11-52 A company is researching the effectiveness...

A company is researching the effectiveness of a new website design to decrease the time to access a website. Five website users were randomly selected, and their times (in seconds) to access the website with the old and new designs were recorded. To compare the times, they computed (new website design time − old website design time). The results are shown below.

User	Old Website Design	New Website Design
A	30	25
B	45	30
C	25	20
D	32	30
E	28	27

For a 0.01 significance level, which of the following is the correct decision regarding the hypothesis that the training was effective in improving customer relationships?

Multiple Choice

• Reject the null hypothesis and conclude that the new design did not reduce the mean access times.

• Fail to reject the null hypothesis and conclude that the mean access times are inaccurate.

• Reject the null hypothesis and conclude that the new design reduced the mean access times.

• Fail to reject the null hypothesis.

Answer 1

since test statistic does not falls in rejection region we fail to reject null hypothesis

we do not have have sufficient evidence to conclude that training was effective in improving customer relationships

Correct option is:

Fail to reject the null hypothesis.