Analysis of variance (ANOVA) uses F-tests to statistically assess the equality of means when you have three or more groups. In this post, I’ll answer several common questions about the F-test.

- How do F-tests work?
- Why do we analyze
*variances*to test*means*?

I’ll use concepts and graphs to answer these questions about F-tests in the context of a one-way ANOVA example. I’ll use the same approach that I use to explain how t-tests work. If you need a primer on the basics, read my hypothesis testing overview.

To learn more about ANOVA tests, including the more complex forms, read my ANOVA Overview.

[Read more…] about How F-tests work in Analysis of Variance (ANOVA)