As an aid to the establishment of personnel requirements, the director of a hospital wishes to...
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 period. The director randomly selects 64 different 24-hour periods and determines the number of admissions for each. Assume that the population standard deviation in known to be s=5. Estimate the mean number of admissions per 24-hour period with a 95% confidence interval on the mean number of admissions per 24-hour period. What is the standard error for the mean of this problem?
Homework Answers
Answer ; We have given :
n = sample size = 64
σ : population standard deviation is known : 5
What is the standard error for the mean of this problem?
standard error = σ / sqrt ( n)
= 5 / 8
= 0.625
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