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62 the executives of carefree insurance inc feel that

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62. The executives of CareFree Insurance, Inc. feel that "a majority of our employees perceive aparticipatory management style at CareFree."A random sample of 200 CareFree employees isselected to test this hypothesis at the 0.05 level of significance.Ninety employees rate themanagement as participatory.The appropriate decision is __________.a) do not reject the null hypothesis
b) reject the null hypothesisc) reduce the sample sized) increase the sample sizee) maintainstatus quoAns: aResponse: See section 9.4 Testing Hypotheses about a ProportionDifficulty: HardLearning Objective: 9.4: Reach a statistical conclusion in hypothesis testing problems about apopulation proportion using the z statistic.63. Elwin Osbourne, CIO at GFS, Inc., suspects that at least 25% of e-mail messages sent byGFS employees are not business related.A random sample of 300 e-mail messages was selectedto test this hypothesis at the 0.01 level of significance.Fifty-four of the messages were notbusiness related.The null hypothesis is ____.Response: See section 9.4 Testing Hypotheses about a Proportion
Difficulty: EasyLearning Objective: 9.4: Reach a statistical conclusion in hypothesis testing problems about apopulation proportion using the z statistic.64. Elwin Osbourne, CIO at GFS, Inc., suspects that at least 25% of e-mail messages sent byGFS employees are not business related.A random sample of 300 e-mail messages was selectedto test this hypothesis at the 0.01 level of significance.Fifty-four of the messages were notbusiness related.The appropriate decision is _______.
Response: See section 9.4 Testing Hypotheses about a ProportionDifficulty: HardLearning Objective: 9.4: Reach a statistical conclusion in hypothesis testing problems about apopulation proportion using the z statistic.

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Term
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Tags
Null hypothesis, Statistical hypothesis testing, researcher

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