DA0-002 Data Analysis Practice Question
A data analyst wants to compare the means of three different training methods on employee productivity. Which statistical test is most appropriate?
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
✓
ANOVA
ANOVA (Analysis of Variance) is used to compare means of three or more groups.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Correlation analysis
Why it's wrong here
Correlation measures relationship strength.
- ✓
ANOVA
Why this is correct
ANOVA compares means across multiple groups.
- ✗
Chi-square test
Why it's wrong here
Chi-square is for categorical variables.
- ✗
t-test
Why it's wrong here
t-test compares only two groups.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 practice question is part of Courseiva's free CompTIA 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 DA0-002 exam.