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The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles

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The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 1300 miles. What warranty should the company use if they want 96% of the tires to outlast the warranty? Select one: O a. 58,700 miles O b. 61,300 miles O c. 57,725 miles O d. 62,275 miles

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