According to the Standards, which of the following is applicable to the internal audit activity's quality assurance and improvement program?

Which of the following would be a red flag that indicates the possibility of inventory fraud?
I. The controller has assumed responsibility for approving all payments to certain vendors.
II. The controller has continuously delayed installation of a new accounts payable system, despite a corporate directive to implement it.
III. Sales commissions are not consistent with the organization's increased levels of sales.
IV. Payments to certain vendors are supported by copies of receiving memos, rather than originals.

If an auditor used nonstatistical sampling instead of statistical sampling to estimate the value of inventory, which of the following would be true?

An audit of customer accounts receivable found that outstanding receivables as a
percentage of revenue had increased significantly during the past two years. The increase was attributed to the extension of credit, at the urging of the marketing department, to a number of companies that were not creditworthy. Which of the following would be least useful in monitoring the disposition of this finding?

The chief audit executive (CAE) notes during review of the final report of an assurance engagement that management has decided to accept the risks of two significant exposures identified by the audit. Which of the following actions by the CAE would be least prudent in these circumstances?