As an Aid to the Establishment of Personnel Requirements, the Director

Essay

As an aid to the establishment of personnel requirements, the director of a hospital wishes to estimate
the mean number of people who are admitted to the emergency room during a 24-hour period. The
director randomly selects 64 different 24-hour periods and determines the number of admissions for
each. For this sample, $\bar { X } = 396 \text { and } S = 100$ . Estimate the mean number of admissions per 24-hour
period with a 95% confidence interval.