An internal auditor is conducting a preliminary survey of the investments area, and sends an internal control questionnaire to the management of the function. (An extract of the survey is provided below).

1. Are there any restrictions for any company's investments?
2. Are there any written policies and procedures that document the flow of investment processing?
3. Are investment purchases recorded in the general ledger on the date traded?
4. Is the documentation easily accessible to an persons who need in to perform their job?
Which of the following is a drawback of testing methods like this?

Which of the following is the correct ratio to use in calculating the dollar value of the population if the auditor is using ratio estimation?
Number of Items
Audited Value
Carrying Amount
Sample
300
$500,000
$480,000
Population
3,000
$5,000,000

An airline contracted with an external service provider to perform maintenance on all aircraft ground support equipment. Management then asked the internal audit activity (IAA) to evaluate the controls in place that would permit appropriate oversight of the service provider in maintaining required maintenance standards.
According to the International Professional Practices Framework, which of the following would be the most appropriate course of action for the IAA to undertake to establish the engagement objectives?

Which of the following has the greatest effect on the efficiency of an audit?

An organization's policies allow buyers to authorize expenditures up to $50,000 without any other approval.
Which of the following audit procedures would be most effective in determining if fraud in the form of payments to fictitious companies has occurred?