A Company Is Researching the Effectiveness of a New Web

Multiple Choice

A company is researching the effectiveness of a new web site design to decrease the time to access a website. Five web site users were randomly selected and their times (in seconds) to access the web site with the old and new designs were recorded. The results follow. For a 0.01 significance level, what is the decision regarding the hypothesis that the training was effective in improving customer relationships?

A) Reject the null hypothesis and conclude that the new design reduced mean access times.
B) Reject the null hypothesis and conclude that the new design did not reduce mean access times.
C) Fail to reject the null hypothesis and conclude that mean access times did not decrease.
D) Fail to reject the null hypothesis and conclude that the mean access times are inaccurate.