Which of the following is not a correct interpretation of the f-ratio in ANOVA testing?
1) The f-ratio measures the ratio of the between-group variability to the within-group variability.
2) The f-ratio is used to test whether the means of two or more groups are significantly different.
3) The f-ratio follows an F-distribution.
4) The f-ratio is used to test the equality of variances between two or more groups.