Statistical Test Used to Compare Two Variances
Which of the following statistical tests is used to compare two variances?
- F-test — Correct Answer
- Z-test
- T-test
- Chi-square test
Explanation:
Correct Answer: F-test
The F-test is used to compare two variances and also to compare more than two sample means (via ANOVA — Analysis of Variance).
Statistical Tests Summary
| Test | Application | Condition |
|---|---|---|
| Z-test (large sample) | Compare sample mean with population mean | n > 30; population SD known |
| T-test (small sample) | Compare sample mean with population mean | n < 30; population SD unknown |
| F-test / ANOVA | Compare two variances; compare >2 sample means | — |
| Chi-square test | Goodness of fit; test for independent attributes | Non-parametric; enumeration data only |
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
