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Certified Internal Auditor Exam Questions 491–495 (page: 100)

Updated On: 9-Feb-2026

Which of the following is not a factor to be considered in discovery sampling?

  1. Population size
  2. Error rate
  3. Cost per sample observation
  4. Confidence level

Answer(s): C



During a routine audit of a customer service hotline, an internal auditor noticed that an unusually high number of customer complaints pertained to payments not being applied to the customers' accounts. Which of the following would most likely be the reason for the high volume of complaints?

  1. An ineffective customer service department
  2. Poor controls in the invoice approval processes
  3. Check tampering by an employee
  4. Submission of fraudulent expense reports

Answer(s): C



Which of the following analysis techniques would be most useful in identifying the causes of adverse conditions?

  1. Fishbone diagrams
  2. Gantt charts
  3. Pareto diagrams
  4. System flowcharts

Answer(s): A



What type of analysis is performed when an auditor tests for unusual variations in information by comparing the number of employees working at a factory site with the direct cost of production each month over a period of one year?

  1. Trend analysis
  2. Ratio analysis
  3. Regression analysis
  4. Horizontal analysis

Answer(s): C



Which of the following analysis techniques would be most useful to an internal auditor in determining the priority of adverse conditions to be addressed?

  1. Fishbone diagram
  2. Flowcharting
  3. Histogram
  4. Pareto chart

Answer(s): D



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