A Senior Manager Asks the Chief Audit Executive (CAE) to Explain

Multiple Choice

A senior manager asks the chief audit executive (CAE) to explain why statistical sampling is the best method to use in conducting an internal audit. Which advantages should the CAE point to in order to justify the internal audit activity's (IAA) use of statistical sampling?

A) Statistical sampling sets limits on resources used for the IAA, allows for a subjective interpretation of the IAA's sampling results, and supports The Institute of Internal Auditors' requirements for using questionnaires as a sampling tool.
B) Statistical sampling allows for evaluation of all organizational data at once, increases the likelihood that risks are immediately identified, and does not require a level of tolerable misstatement or margin of error.
C) Statistical sampling allows for the selection of a minimum sample size, provides a quantitative expression of the IAA's sampling results, and supports extrapolation.
D) Statistical sampling itself identifies root causes of issues, utilizes a qualitative method for analyzing results, and supports engagement objectives through the use of external benchmarking.