Evidence to support administrator-s claim

Reference no: EM1316851

Q1) Employment information service says that standard deviation of annual salaries for public relations managers is at least $14.500. Annual salaries for 18 randomly selected public relations managers are listed. At a = 0.10, can you refuse the claim?

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

Q2) On physical science assessment test, scores of a random sample of 22 eighth grade students have standard deviation of 27.7. This result prompts a test administrator to claim that standard deviation for eighth graders on examination is less than 29.At a = 0.10, is there sufficient evidence to support administrator's claim?

Reference no: EM1316851

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