Statistics: Calculating Confidence Intervals – #199

Question: The director of a hospital wishes to estimate the mean number of people who are admitted to the emergency room during a 24-hr. period.

He randomly selects 64 different 24-hour periods and determines the number of admissions for each.

Sample mean: 15.4

S2 = 16

Estimate the mean number of admissions per 24-hr. period with a 99% confidence interval.


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