A vice president in charge of sales for a large corporation claims that salespeople are averaging no more than 15 sales contacts per week. (He would like to increase this figure.) As a check on his claim, n=26 salespeople are selected at random, and the number of contacts made by each is recorded for a single randomly selected week. The mean and variance of the 26 measurements were 11 and 9, respectively. Does the evidence support the vice president's claim? Use a test with a level of 0.05. Use the six-step hypothesis testing method.