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A Tire Manufacturing Company Is Reviewing Its Warranty for Their

Question 97

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A tire manufacturing company is reviewing its warranty for their rainmaker tire. The warranty is for 40,000 miles. The distribution of tire wear is normally distributed with a population standard deviation of 15,000 miles. The tire company believes that the tire actually lasts more than 40,000 miles. A sample of 49 tires revealed that the mean number of miles is 45,000 miles. What is H0:?

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H0: µ ≤ 40,000
Explanation: The problem s...

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