Population mean tread wear

Reference no: EM1316979

Mileage tests were conducted on a randomly selected sample of 200 newly developed automobile tires. The average tread wear from this sample was found to be 50,000 miles with a standard deviation of 3,500 miles. Construct a 99% confidence interval for the population mean tread wear for this type of tire.

Reference no: EM1316979

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