an auditor wants to estimate what proportion of a bank's commercial loan files are incomplete. The auditor randomly samples 60 files and finds 12 are...

an auditor wants to estimate what proportion of a bank's commercial loan files are incomplete. The auditor randomly samples 60 files and finds 12 are incomplete. using a 95% confidence interval, estimate the true proportion of incomplete files for all the bank's commerical loans. write a statement about the confidence level and intervel youn find