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Approximate values in the normal distribution tables

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Reference no: EM132160581

A psychologist is collecting data on the time it takes to learn a certain task. For 50 randomly selected adult subjects, the sample mean is 16.40 minutes and the sample standard deviation is 4.00 minutes. Construct the 95 percent confidence interval for the mean time required by all adults to learn the task. You must use the best approximate values in the normal distribution tables. Do not average table values.

Reference no: EM132160581

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