Conduct a two-sample test of means 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. The results follow.

User Old Website Design New Website Design

A 30 15

B 45 20

C 25 10

D 32 25

E 28 20

Let = 0.05. Is the mean time to access the new website design shorter, or is (time for the old design - time for the new design) greater than zero? Express your answer in terms of the null hypothesis.