5. Mileage tests were conducted on a randomly selected sample of 100 newly developed automobile

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 1.     Mileage tests were conducted on a randomly selected sample of 100 newly developed automobile tires. The results showed that the mean tread life was 50,000 miles, with a standard deviation of 3,500 miles. What is the best estimate of the mean tread life in miles for the entire population of these tires?

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500

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3,500

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35

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50,000
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