Question: Salaries An employment information service says that the standard deviation of the annual salaries for public relations managers is at least $14,500. The annual salaries for 18 randomly chosen public relations managers are listed. At can you reject the claim? (Adapted from America’s Career InfoNet)

47,517 60,217 39,177 61,744 79,422 70,770

60,549 60,263 72,939 72,372 75,014 59,164

44,811 65,413 61,310 90,433 44,185 41,805