Question: Hugger Polls contends that an agent conducts a mean of 53 in-depth home surveys every week. A streamlined survey form has been introduced, and Hugger wants to evaluate its effectiveness. The number of in-depth surveys conducted during a week by a random sample of agents are:

53 57 50 55 58 54 60 52 59 62 60 60 51

59 56

At the .05 level of significance, can we conclude that the mean number of interviews conducted by the agents is more than 53 per week? Use a standard deviation of 3.7378. If you use Excel, embed the spreadsheet/worksheet into this exercise.

a. Set up the null hypothesis and alternative hypothesis.

b. State the decision rule.

c. Show calculations for the test statistic.

d. What is your decision?