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A random sample of forty dash seven 200-meter swims has a mean time of 3.24 minutes and the population standard deviation is 0.07 minutes. Construct

A random sample of forty dash seven 200-meter swims has a mean time of 3.24 minutes and the population standard deviation is 0.07 minutes. Construct a 90% confidence interval for the population mean time. Interpret the results.

The 90% confidence interval is

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