The distribution of study times for first year students follows a Normal distribution with standard deviation = 55 minutes. Suppose a sample of 341 students found that the mean study time for these students was = 189 minutes per week. Use this to find a 95% confidence interval to estimate the mean study time for all students.

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04-11-2022
Mathematics

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The distribution of study times for first year students follows a Normal distribution with standard deviation = 55 minutes. Suppose a sample of 341 students found that the mean study time for these students was = 189 minutes per week. Use this to find a 95% confidence interval to estimate the mean study time for all students.

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