IIA-CIA-PART2 · Question #114
An internal auditor is testing the success of the IT support department in meeting the service levels guaranteed to small, medium and large customers. The customer's size classification is based on…
The correct answer is D. Stratified sampling. Stratified sampling is the most suitable technique for selecting customers for testing the IT support department's success in meeting service levels, as it involves dividing the population into distinct subgroups (strata) based on certain characteristics (in this case, customer…
Question
An internal auditor is testing the success of the IT support department in meeting the service levels guaranteed to small, medium and large customers. The customer's size classification is based on its annual expenditures with the organization and the nature and extent of services it receives. Which of the following sampling techniques would be the most suitable to select customers for this test?
Options
- AInterval sampling
- BCluster sampling
- CStop-and-go sampling
- DStratified sampling
How the community answered
(19 responses)- A16% (3)
- B5% (1)
- C5% (1)
- D74% (14)
Explanation
Stratified sampling is the most suitable technique for selecting customers for testing the IT support department's success in meeting service levels, as it involves dividing the population into distinct subgroups (strata) based on certain characteristics (in this case, customer size classification based on annual expenditures and service nature). This method ensures that each subgroup is adequately represented in the sample, providing more reliable and relevant results.
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