Health insurers and the federal government are both putting pressure on hospitals to shorten the average length of stay
Posted: Thu May 05, 2022 9:11 pm
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 for men in the United States is 5.4 days, and the average for women is 4.6 days (Statistical Abstract of the United States: 2012). A random sample of 25 hospitals in one state had a mean LOS for women 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 women for the state's hospitals. b)Interpret the interval in terms of this application. c) What is meant by the phrase "90% confidence interval"?