(Step-by-Step) An employment information service says that the standard deviation of the annual salaries for public relations managers is at least $14,500.
Question: 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 =0.10, 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
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