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A random sample of 48 days taken at a large hospital shows that an average of 38 patients were treated in the emergency room (ER) per day. The standard deviation of the population is 4.

a. Find the 95% confidence interval of the mean number of ER patients treated each day in the hospital

b. Find the 95% confidence interval of the mean number of ER patients treated each day in the hospital if the standard deviation is 8 instead of 4.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9396392

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