CompTIA Data+ (DA0-001) — Question 106

Which of the following is a non-parametric test?

Answer options

• A. One-sample t-test
• B. Two-way ANOVA
• C. Correlation coefficient
• D. Spearman’s rank correlation

Correct answer: D

Explanation

The correct answer is D, Spearman’s rank correlation, which is a non-parametric test used to assess how well the relationship between two variables can be described using a monotonic function. Options A and B are parametric tests that rely on data following a normal distribution, while option C refers to a statistical measure rather than a test.