As an aid to the establishment of personnel requirements, the director of a hospital wishes to estimate the mean number
Posted: Mon Apr 11, 2022 6:22 am
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, X =
396 and S = 100. Using the sample standard deviation as an estimate
for the population standard deviation, what size sample should the
director choose if she wishes to estimate the mean number of
admissions per 24-hour period to within 1 admission with 99%
reliably?
Correct Answer is 166. Please show work on how to get this
value
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, X =
396 and S = 100. Using the sample standard deviation as an estimate
for the population standard deviation, what size sample should the
director choose if she wishes to estimate the mean number of
admissions per 24-hour period to within 1 admission with 99%
reliably?
Correct Answer is 166. Please show work on how to get this
value