2. (TCO 7) A nursing school wants to estimate the true mean annual income of its alumni. It randomly samples 200 of its alumni. The mean annual income was $55,200 with a standard deviation of $1,500. Find a 95% confidence interval for the true mean annual income of the nursing school alumni. Write a statement about the confidence level and the interval you find. (Points : 6)

3. (TCO 7) An auditor wants to estimate what proportion of a bank’s commercial loan files are incomplete. The auditor randomly samples 100 files and finds 9 are incomplete. Using a 95% confidence interval, estimate the true proportion of incomplete files for ALL the bank’s commercial loans. Write a statement about the confidence level and the interval you find. (Points : 6)

due in hour

### Recently Asked Questions

- IT 625 Final Project Case Study: Medical Informatics Background Medical Informatics, a leading health services company, embarked on a new product development

- Please HELP ME ON THESE QUESTIONS I DON'T UNDER STAND.ITS FROM A BOOK CALLED CRIMINAL LAW TODAY FIFTH EDITION BY FRANK SCHMALLEGER DANIEL E.HALL.PLEASE DO NOT

- I need help answering these questions...links are in document