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

• A.2 minutes.
• B.3 minutes.
• C.4 minutes.
• D.5 minutes.

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Which of the following is true for consulting engagements'?

• A.The nature of consulting services does not have to be in the internal audit charter
• B.The internal audit activity must ensure management actions have been effectively implemented or risk accepted
• C.A work program for the engagement is not required but may be developed
• D.Risks identified from the engagement must be considered when evaluating the organization's risk management processes

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During a monthly internal audit staff meeting, the chief audit executive (CAE) decided to reinforce the importance of internal audit staff being objective in their work. Which of the following examples would be most appropriate for the CAE to include as part of the meeting presentation?

• A.Statistical sampling techniques should always be used to pull unbiased sampling for testing.
• B.Fieldwork completed by internal auditors should be appropriately reviewed.
• C.During the audit review period, there should be no nonaudit dialogues with the audit client.
• D.Internal auditors should avoid using the lunch room simultaneously with audit clients.

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Management has requested that an internal auditor serve as member of a task force that will review current receivables practices and make recommendations to improve processes. Which of the following is the most appropriate response by the internal auditor?

• A.Decline the assignment because participation on task forces will impair the auditor's objectivity in future audit engagements.
• B.Accept the assignment if the auditor believes that it will not impair objectivity in future audit engagements.
• C.Accept the assignment provided that such consulting services are defined in the charter.
• D.Do not accept the assignment because the assignment is not part of an approved audit plan.

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Management would like to self-assess the overall effectiveness of the controls in place for its 200-person manufacturing department. Which of the following client-facilitated approaches is likely to be the most efficient way to accomplish this objective?

• A.Surveys.
• B.Workshops.
• C.Observation.
• D.Interviews.

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