41. A financial auditor needs to verify the year end results of a company. He takes random samples per month of 100 invoices processed for the last year. He reviews 10 items per invoice and so each invoice could contain multiple errors. One error could be a taxation error and another could be a discount error. (3 Points) Month Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Number 5 5 3 3 7 7 13 3 4 of Errors 3 5 6 Based on the data provided, what are the 95% (2-sigma) Upper and Lower control limits for invoice errors? Does the data seem to be random or is there assignable variation for any month that the auditor should check that month more closely