Calculate 95 percent confidence interval for population mean

Assignment Help Operation Management

Reference no: EM13110502

Health insurers and the federal govt are both putting pressure on the hospitals to shorten average length of stay of their patients. A random sample of 20 hospitals in one state had a mean length of stay for non heart patients in 2000 of 3.8 days and a SD of 1.2 days. Calculate a 95% confidence interval for the population mean LOS for non heart patients in the states hospitals.

Reference no: EM13110502

Questions Cloud

Determine the null hypothesis : A random sample of 100 European professional soccer players has an average age of 27 years and a SD of 4 years.

Which enzymatic defect in the citric cycle cause : Citric cycle- Which enzymatic defect in the citric cycle cause low oxygen consumption at succinate substrate, but normal consumption of oxygen at furmarate and malate? Explain.

Determine probability that subscriber didn-t rent car : Determine the probability that subscriber didn't rent the car during past 12 months for either business or personal reasons?

Statistics-hypothesis questions : A researcher claims that the average age of people who buy lottery tickets is 70. A sample of 30 is selected and their ages are recorded as shown below. The standard deviation is 16. At alpha = 0.05 is there enough evidence to reject the researche..

Calculate 95 percent confidence interval for population mean : Health insurers and the federal govt are both putting pressure on the hospitals to shorten average length of stay of their patients.

Which would cause a deficiency to the extent : Which would cause a deficiency (O2 or H2O) to the extent to limit oxygen consumption even in the presence of saturated oxygen levels during the circic cycle? Explain.

Calculate the z score of the airplanes lateness : The average lateness for one of the top airline companies is 10 minutes. The Standard Deviation of the lateness measure is calculated as 3.

Why individuals of a particular kind of moth pull : Each of the statements below is a hypothesis about why individuals of a particular kind of moth pull their forewings forward when poked. For each statement, label it (a) if it is a proximate hypothesis and (b) if it is an ultimate hypothesis.

Discuss benefits gained from case studies : What benefits can be gained from case studies? What dangers, if any, are there in using case studies? In what ways are they useful?

User Account

All Pages