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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

 

Statistics and Probability, Statistics

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