Question: A professor samples 9 random TCC students and record their commute times. She finds that the average commute time of the 9 students is 13.49

A professor samples 9 random TCC students and record their commute times. She finds that the average commute time of the 9 students is 13.49 minutes with a standard deviation of 4.02 minutes. She also finds that the commute times look like they come from a normal distribution. Find a 98% confidence interval for the mean commute time of all TCC students. Round to three decimal places. Submit Question Jump to

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