Find confidence interval of true mean-normally distributed

Assignment Help Basic Statistics

Reference no: EM13110572

In the hospital, a sample of 8 weeks was selected, and it was found that the average of 438 patients was treated in emergency room each week. Standard deviation was 16. Determine the 99% confidence interval of true mean. Suppose the variable is normally distributed.

Reference no: EM13110572

Questions Cloud

Illustrate what is required for a person to justify his : Illustrate what is required for a person to justify his or her beliefs? Do many people believe illustrate what they do without giving those beliefs critical scrutiny.

Classify two strategies you consider important to use : Illustrate what are three examples of occurrences of bias in business writing? Classify two strategies you consider important to use when working to reduce bias in business writing.

Determine the labor productivity : The weekly output of a fabrication process is shown below together with data for labor and material inputs. Standard selling price is $100 per unit. Overhead is charged weekly at the rate of $2000.

Expects to receive royalty payments in total : The spot price of the pound is currently $1.6560 and the pound is expected to trade in the range of $1.6250 to $1.7010. Vilas's treasurer believes that the most likely price of the pound in 30 days will be $1.6400.

Find confidence interval of true mean-normally distributed : Standard deviation was 16. Determine the 99% confidence interval of true mean. Suppose the variable is normally distributed.

Explain how successful the experiment was : working budget is not large enough to collect data on the population of 400 schools and you can afford to only collect a sample of 80 schools. Unless the question states otherwise, conduct all analyses at the 95% confidence level (α=.05).

Detailed explanation of hypothesis testing : Political polls typically sample randomly from the U.S population to investigate the percentage of voters who favor some candidate or issue. The number of people polled is usually on the order of 1000.

Is it naive to be completely honest and bare your soul : Is it naive to be completely honest and bare your soul during negotiations? Or are the rules of negotiations: Any tactic that will improve your chance of winning is acceptable?

Illustrate what is the overall reliability of the product : Ten of the components have a 1/10,000 chance of failure. Five have a 3/10,000 chance for failure. Four have a 4/10,000 chance for failure. One component has a 1/100 chance for failure. Illustrate what is the overall reliability of the product?

User Account

All Pages