Replacement times for Washing machines are normally distributed with a mean of 9.5 years and a standard deviation of 1.7 years. If you want to
Replacement times for Washing machines are normally distributed with a mean of 9.5 years and a standard deviation of 1.7 years. If you want to provide a warranty so that only 1.9% of the washing machines will be replaced before the warranty expires, what is the time length of the warranty? Round your answer to nearest one.
Find the probability that a randomly selected washing machine will have a replacement time longer than 10 years.
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Authors: A O Gelfond, Leo F Boron
1st Edition
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