Health insurers and the federal government are both putting pressure on hospitals to shorten the average length
Question:
Health insurers and the federal government are both putting pressure on hospitals to shorten the average length of stay (LOS) of their patients. The average LOS in the United States is 4.6 days (Healthcare Cost and Utilization Project Statistical Brief, December 2018). A random sample of 20 hospitals in one state had a mean LOS of 3.8 days and a standard deviation of 1.2 days.
a. Use a 90% confidence interval to estimate the population mean LOS for the state’s hospitals.
b. Interpret the interval in terms of this application.
c. What is meant by the phrase “90% confidence interval”?
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Step by Step Answer:
We must assume that the distribution of the LOSs for ...View the full answer
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Jehal Shah
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Related Book For 
Statistics For Business And Economics
ISBN: 9780136855354
14th Edition
Authors: James T. McClave, P. George Benson, Terry T Sincich
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