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Certified Internal Auditor Exam Questions 466–470 (page: 95)

If an auditor expects to find numerous discrepancies between recorded values and audited values of sample selections, which sampling technique would be most appropriate?

Which of the following factors would increase the confidence level in a variables sampling plan?

I). A larger sample size
II). A stratified sample
III). A larger standard deviation

A fast food company is developing a computer simulation involving arrival time at a
drive through restaurant. The distribution for arrival times is
Time Between Arrivals Probability Single Digit Random Number Assigned 1 minute 0.1 0
2 minute 0.2 1, 2
3 minute 0.3 3, 4, 5
4 minute 0.4 6, 7, 8, 9
Six random numbers are selected to represent the arrival of six cars 1, 6, 9, 0, 5, 6. The mean time between arrivals for these cars, in this run of the simulation model, is

An internal auditor is discussing an audit problem with an engagement client. While listening to the client, the internal auditor should

An auditor used a questionnaire during an interview to gather information about the nature of credit sales processing. The questionnaire did not cover some pertinent information offered by the person being interviewed, and the auditor did not document the potential problems for further investigation. The primary deficiency with the above process is that