A mobile phone has an advertised life of 30,000 hours. A sample of 50 phones had a

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A mobile phone has an advertised life of 30,000 hours. A sample of 50 phones had a life of 28,500 hours with a standard deviation of 1,000 hours. What can you say about the advertisements?

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Quantitative Methods For Business

ISBN: 978-0273739470

5th edition

Authors: Donald Waters

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Question Posted: Sep 20, 2012 12:35 AM

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A mobile phone has an advertised life of 30,000 hours. A sample of 50 phones had a

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Quantitative Methods For Business

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