Point estimatation of the population mean

Reference no: EM1396287

An irate patient complained that the cost of a doctor's visit was too high. She randomly surveyed 20 other patients and found that the mean amount of money they spent on each doctor's visit was $44.80. The standard deviation of the sample was $3.53. Find a point estimate of the population mean. Find the 95% confidence interval of the population mean. Assume the variable is normally distributed.

Reference no: EM1396287

Questions Cloud

Confidence interval of the true mean of a hospital : In a hospital, a sample of 8 weeks was selected, and it was found that an average of 438 patients was treated in the emergency room each week. The standard deviation was 16. Find the 99% confidence interval of the true mean. Assume the variable is..

Discuss the technology its benefits which it helps : Pick a technological innovation which has been a benefit to society as a whole, or some societal subgroup, where profit does not exist, or is at best a bi-product. Discuss the technology, its benefits, which it helps, explain how it came to be, a..

Identify additional genes expressed in absence of oxygen : Shigella flexneri is an intracellular pathogen closely related to E. coli and S. typhimurium. Some experiments have shown that oxygen controls expression of some virulence factors in this organism.

Discuss a better method than using average demand for jenn : Discuss a better method than using average demand for Jenn to more accurately assess the ER's capacity requirements. Note: It may come from a previous chapter.

Point estimatation of the population mean : Find a point estimate of the population mean. Find the 95% confidence interval of the population mean. Assume the variable is normally distributed.

Explain leadership styles of presidents dwight eisenhower : What estimation can be made of leadership styles Presidents Dwight Eisenhower and John Kennedy which made them effective or inhibited their effectiveness?

Determine the least square trend equation : Determine the least square trend equation. Estimate the number of employees in 2008. By how much the number of employees decreases (or increases) per year on the average?

Information about multiple regression in excel : The Texas Transportation institute at texas A&M university conducted a survey to determine the number of hours per year drivers wasted sitting in traffic. the table below shows the number of hours wasted per year sitting in traffic.

Data collection methods and instruments : Provide examples of a different data collection method and a data collection instrument used in managerial research. Why is it important to ensure that these data collection methods and instruments are both reliable and valid?

User Account

All Pages