CISA Information System Auditing Process Practice Question
Which THREE factors should an IS auditor consider when determining the sample size for a compliance test? (Select three.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The tolerable error rate
Sample size is influenced by desired confidence, tolerable error rate, and expected error rate.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The tolerable error rate
Why this is correct
Lower tolerable error rate needs larger sample.
- ✓
The confidence level desired
Why this is correct
Higher confidence level requires larger sample.
- ✓
The expected error rate in the population
Why this is correct
Higher expected error may require larger sample.
- ✗
The audit budget
Why it's wrong here
Budget is a constraint but not a statistical factor.
- ✗
The population size
Why it's wrong here
Population size has minimal effect on sample size for large populations.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CISA practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CISA exam.