A car dealership has found that the length of time before a major repair is required on the new cars it sells is normally distributed, with a mean of 36 months and a standard deviation of 9 months. If the dealer wants only 5% of the cars to fail before the end of the warranty period, for how many months should the cars be guaranteed?

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The Answer of A car dealership has found that the length of time before a major repair is required on the new cars it sells is normally distributed, with a mean of 36 months and a standard deviation of 9 months. If the dealer wants only 5% of the cars to fail before the end of the warranty period, for how many months should the cars be guaranteed?

A Car Dealership Has Found That the Length of Time