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Mileage tests were conducted on a randomly selected sample of 100 newly developed automobile tires. The results showed that the average tread life was 52,515 miles with a standard deviation of 3,550 miles. What is the best estimate of the average tread life in miles for the entire population of these tires?

52,515
3,550
(52,515/100)
(3,550/100)

2 answers

52,515

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