Question: A sample of 33 airline passengers found that the average check- in time is 2.167. Based on long term data, the population standard deviation is

A sample of 33 airline passengers found that the average check- in time is 2.167. Based on long term data, the population standard deviation is known to be 0.48. Find a 95% confidence interval for the mean check in time. Use the appropriate formula and verify your result using the Confidence Intervals workbook.

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