A manufacturer knows that their items have a normally distributed lifespan, with a mean of 8.4 years,
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Question:
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 8.4 years, and standard deviation of 0.7 years. The 3% of items with the shortest lifespan will last less than how many years? Give your answer to one decimal place.
Related Book For
Statistics for Business and Economics
ISBN: 978-0132930192
8th edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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