IIA-CIA-Part2 Exam Questions

Nonstatistical sampling allows auditors to use their professional judgment to determine the sample size and select the items to be tested. Unlike statistical sampling, which relies on probabilistic methods to determine the sample size and selection, nonstatistical sampling is more flexible and can be tailored to the specific circumstances of the audit engagement.

IIA Reference:

IIA Standard 2320: Analysis and Evaluation suggests that internal auditors should apply appropriate methods to analyze data and draw conclusions. Nonstatistical sampling allows for the application of professional judgment, which can be advantageous in certain audit situations where rigid statistical methods may not be practical or necessary.

The Practice Guide on Sampling discusses the differences between statistical and nonstatistical sampling, highlighting that nonstatistical sampling relies more on the auditor's judgment, which can be beneficial in certain contexts.

Given this, the correct answer is C. Nonstatistical sampling provides for the use of subjective judgment in determining the sample size.

The correct approach aligns with the International Standards for the Professional Practice of Internal Auditing (Standards), particularly Standard 2400: Communicating Results. The auditor must promptly discuss material errors to prevent ongoing misstatements. Immediate correction ensures timely remediation and reduces the risk of material misstatement persisting in the financial records. Additionally, if the error is resolved before the engagement concludes, it may not necessitate inclusion in the final report, as per the guidance on handling material findings (Practice Advisory 2410-1). This approach also demonstrates collaboration and alignment with management, fostering trust.

Matching invoices to receiving reports ensures the organization only pays for goods it has actually received, addressing completeness and accuracy in financial transactions. This procedure aligns with the COSO Internal Control Framework's principles regarding transaction processing and control activities. It mitigates risks of paying for unordered or unreceived goods, a common source of errors and potential fraud in the accounts payable process. The IIA's CIA Part 2 syllabus emphasizes testing of key controls in financial systems, including those preventing overpayments (Section II: Audit Engagements).

When conducting a review of an electronic data interchange (EDI) application provided by a third-party service, it is essential to determine whether an independent review of the service provider's operation has been conducted and to verify that the service provider's contracts include necessary clauses. These steps ensure that the service provider operates securely and meets the organization's requirements for data protection and service reliability.

IIA Reference:

IIA Standard 2100: Nature of Work indicates that internal audit should evaluate the adequacy and effectiveness of controls, including those at third-party service providers. Verifying that an independent review has been conducted and ensuring that contracts contain the necessary clauses are critical steps in assessing these controls.

The Practice Guide on Third-Party Risk Management advises internal auditors to review the service provider's contractual agreements and independent audit reports to assess the adequacy of controls and compliance with standards.