As an aid in 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 36 different 24-hour periods and determines the number of admissions for each. For this sample, = 16.4 and s = 9. a. Estimate the mean number of admissions per 24-hour period with a 90% confidence interval. b. Interpret the confidence interval found in part a in the words of the problem. c. What would you do, if you want a more reliable interval than the one found in part a?

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As an aid in 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 36 different 24-hour periods and determines the number of
admissions for each. For this sample, F = 16.4 and s' = 9.
%3D
a. Estimate the mean number of admissions per 24-hour period with a 90% confidence interval.
b. Interpret the confidence interval found in part a in the words of the problem.
c. What would you do, if you want a more reliable interval than the one found in part a?
Transcribed Image Text:As an aid in 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 36 different 24-hour periods and determines the number of admissions for each. For this sample, F = 16.4 and s' = 9. %3D a. Estimate the mean number of admissions per 24-hour period with a 90% confidence interval. b. Interpret the confidence interval found in part a in the words of the problem. c. What would you do, if you want a more reliable interval than the one found in part a?
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