The lifetime of a washing machine is normally distributed with mean 4 years. Only 15% of all

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The lifetime of a washing machine is normally distributed with mean 4 years. Only 15% of all washing machines last at least 5 years. What is the standard deviation of the lifetime of a washing machine?

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Managerial Statistics

ISBN: 9780534389314

1st Edition

Authors: S. Christian Albright, Wayne L. Winston, Christopher Zappe

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Question Posted: Jul 26, 2023 09:48 AM

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The lifetime of a washing machine is normally distributed with mean 4 years. Only 15% of all

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Managerial Statistics

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