You are working for a bank. The bank manager wants to know the mean waiting time for all customers who visit this bank. She has asked you to estimate this mean by taking a sample. Briefly explain how you will conduct this study. Collect data on the waiting times for 45 customers who visit a bank. Then estimate the population mean. Choose your own confidence level.
Answer to relevant QuestionsWhat assumption(s) must hold true to use the normal distribution to make a confidence interval for the population proportion, p? A sample of 200 observations selected from a population produced a sample proportion equal to .91. a. Make a 90% confidence interval for p. b. Construct a 95% confidence interval for p. c. Make a 99% confidence interval for ...Determine the most conservative sample size for the estimation of the population proportion for the following. a. E = .025, confidence level = 95% b. E = .05, confidence level = 90% c. E = .015, confidence level = 99% An Accountemps survey asked workers to identify what behavior of coworkers irritates them the most. Forty-one percent of the workers surveyed said that sloppy work is the most irritating behavior. Suppose that this ...You want to estimate the percentage of students at your college or university who are satisfied with the campus food services. Briefly explain how you will make such an estimate. Select a sample of 30 students and ask them ...
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