Estimate the mean number of admission

Reference no: EM13151437

The director of a hospital wishes to estimate the mean number of people who are admitted to the emergency room during a 24-hour period. The director randomly selects 64 different 24-hour periods and determines the number of admissions for each. For this sample, the sample mean=19.5 and the sample variance=25. If the director wishes to estimate the mean number of admissions per 24-hour period to within 1 admission with 99% reliability, what size sample should she choose?

Reference no: EM13151437

Questions Cloud

Explain how the resistant trait evolved based : Explain how the resistant trait evolved based on principles of natural selection and evolution of a trait at the population level.

The hardest time estimating warranty costs? : What industries do you think have the hardest time estimating warranty costs?

Explain what is the purpose of sodium phosphate dibasic : What is the purpose of Sodium phosphate dibasic when used to make ethanol via fermentation?

How the effectiveness of antimicrobial agents varies : Briefly explain how the effectiveness of antimicrobial agents varies with population size, population composition, concentration or intensity of the agent, treatment duration, temperature, and local environmental conditions.

Estimate the mean number of admission : If the director wishes to estimate the mean number of admissions per 24-hour period to within 1 admission with 99% reliability, what size sample should she choose?

Find the probability that a random sample of has a mean : Given a normal population whose mean is 50 and whose standard deviation is 10. Find the probability that a random sample of 4 has a mean between 49 and 52.

What is the function of the casparian strip : what is the function of the casparian strip and what cheif function do the cells in the cortex serve and how do you know this?

China want its own currency : Why would China want its own currency to be undervalued relative to the U.S. dollar? How does china maintain an undervalue currency?

What is meant by radial or alternate : what is meant by "radial" or "alternate" arrangement of vascular tissue? and how is the arrangment of the cells that contain a casparian strip? Please explain why?

User Account

All Pages