Probability that mean miles recorded when the tires failed

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Reference no: EM13132555

A tire manufacturer claims that the lives of its tires are normally distributed and will last an average of 60,000 miles with a standard deviation of 3,000 miles. Sixty-four randomly selected tires were tested and the average miles were the tire failed were recorded. What is the probability that the mean miles recorded when the tires failed will be more than 59,500 miles?

Reference no: EM13132555

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