(Solution Library) An auditor wants to estimate what proportion of a bank’s commercial loan files are incomplete. The auditor randomly samples 100 files and
Question: 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.
Deliverable: Word Document 
(Steps Shown) A study was conducted to estimate the mean amount
![[Solution] What sample size would be needed](/images/solutions/MC-solution-library-55663.jpg "[Solution] What sample size would be needed to estimate the population")
[Solution] What sample size would be needed to estimate the population
(See) A 95% confidence interval estimate for a population mean
![[Solution Library] In testing the hypothesis, H](/images/solutions/MC-solution-library-55665.jpg "[Solution Library] In testing the hypothesis, H 0 : 31.5 and H a")
[Solution Library] In testing the hypothesis, H 0 : 31.5 and H a
![[Solution] To test the null hypothesis that](/images/solutions/MC-solution-library-55666.jpg "[Solution] To test the null hypothesis that the average lifetime")
[Solution] To test the null hypothesis that the average lifetime
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