Find best estimate of the average tread life in miles

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Reference no: EM13157265

Mileage test were conducted on a randomly selected sample of 100 newly developed automobile tires. The average tread wear was found to be 80,000 miles with a standard deviation of 5,600 miles. What is the best estimate of the average tread life in miles for the entire population of these tires?

Reference no: EM13157265

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