A television set manufacturer has found the length of time until the first repair is normally distributed with a mean of 4.5 years and a standard deviation of 1.5 years. If the manufacturer wants only 10.2% of the first repairs to occur within the warranty period, how long should the warranty be?
______________ years

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The Answer of A television set manufacturer has found the length of time until the first repair is normally distributed with a mean of 4.5 years and a standard deviation of 1.5 years. If the manufacturer wants only 10.2% of the first repairs to occur within the warranty period, how long should the warranty be?
______________ years

A Television Set Manufacturer Has Found the Length of Time