An Auditor Was Hired to Verify the Accuracy of a Company's

Multiple Choice

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.Historically,the population standard deviation is around $124.00.A 97% confidence interval for the mean error per invoice would be _____.

A) [-268.08,270.08]
B) [-6.69,8.69]
C) [-44.48,46.48]
D) [-38.40,40.40]
E) [-9.17,11.66]