Response time. Last year, your companys service technicians took an average of 2.5 hours to respond to

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Response time. Last year, your company’s service technicians took an average of 2.5 hours to respond to trouble calls from business customers who had purchased service contracts. Do this year’s data show a significantly different average response time? What null and alternative hypotheses should you test to answer this question?

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Statistics Concepts And Controversies

ISBN: 9781429277761

7th Edition

Authors: David S Moore, William I Notz

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