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20. Lifetimes of a certain brand of tires are approximately normally distributed with mean 40,000 miles...

20. Lifetimes of a certain brand of tires are approximately normally distributed with mean 40,000 miles and standard deviation 2,500 miles. If the company making the tires did not want to replace more than 3% of the tires, what is the lowest mileage the company should make for the warranty? Show all work do not round.

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