# stats-confidence intervals

Jun 27th, 2015
RockCafe
Category:
Statistics
Price: \$5 USD

Question description

1. Confidence Interval – Mean

A random sample of 48 days taken at a large hospital shows that an average of 38 patients were treated in the emergency room per day.  The standard deviation of the population is 4. Find the 99% confidence interval of the mean number of ER patients treated each day at the hospital.

1. Find the critical value

2. Find the margin of error:  E =

3. Find the confidence interval: CI =

4. Write the conclusion.

(Top Tutor) Daniel C.
(997)
School: New York University

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Jun 28th, 2015
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