Regional Manager Sue Collins Would Like to Know If the Mean

Essay

Regional Manager Sue Collins would like to know if the mean number of telephone calls made per 8-hour shift is the same for the telemarketers at her three call centers (Austin, Las Vegas, and Albuquerque).A simple random sample of 6 telemarketers from each of the three call centers was taken and the number of telephone calls made in eight hours by each observed employee is shown below.
a. Using $\alpha$ = .10, test for any significant difference in number of telephone calls made at the three call centers.
b. Apply Fisher's least significant difference (LSD) procedure to determine where the differences occur. Use $\alpha$ = .05.