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A researcher wishes to estimate the number of days it takes an automobile dealer to sell a Chevrolet car. A sample of 53 cars had

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A researcher wishes to estimate the number of days it takes an automobile dealer to sell a Chevrolet car. A sample of 53 cars had a mean time on the dealer's lot of 58 days. Assume the population standard deviation to be 4 days. Find the 99% confidence interval of the population mean. (Use 2 decimal places rounding) [2 Marks]

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