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A random sample of forty-eight 200-meters swims has a mean time of 3.12 minutes with a standard deviation of 0.09 minutes. Construct a 98% confidence

A random sample of forty-eight 200-meters swims has a mean time of 3.12 minutes with a standard deviation of 0.09 minutes. Construct a 98% confidence interval for the population mean time of 200 meters swims. Show work . Draw bell curve please

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