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Salaries An employment information service says that standard deviation of annual salaries for public relations managers is at least $14.500. The annual salaries for 18 randomly selected public relations managers are listed. At a = 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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