Use this information to answer Question 22 to Question25:Themanagement XYC Inc. wants to determine whether there is a signi cant di erence in the average length of time (in minutes) employees spent on Emails every day within its two operating divisions at = 0.05. The following data has been accumulated for this test. (The degrees of freedom associated with test statistic is given to be 94)

Division 1 Division 2

Sample Mean 56.8 62.8

Sample Standard Deviation 10 18

Sample Size 51 60

22.(2 points) Write appropriate null and alternate hypothesis.

23.(2 points) Determine the critical value for this test.

24.(3 points) Calculate test statistic.

25.(2 points) Based on above information, what is your conclusion of the test?