Question: An auditor was hired to verify the accuracy of a company’s new billing system. Thirty-five (35) invoices produced since the system was installed were sampled. The average error on the invoices was $1.00 with a standard deviation of $124.00. Construct a 97% confidence interval for the mean error per invoice.

1. [-268.08 270.08]
2. [-6.69 8.69]
3. [-44.48 46.48]
4. [-38.40 40.40]
5. [-9.17 11.66]

Price: $2.99

Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document