What is the concept of post-hoc testing in ANOVA?
- It is a test performed before ANOVA
- It is a test performed to calculate the F-statistic
- It is a test performed to check the assumptions of ANOVA
- It is a test performed to determine which groups are significantly different from each other
Post-hoc testing in ANOVA is performed after the ANOVA test when the null hypothesis has been rejected. Its purpose is to determine which specific groups are significantly different from each other. Commonly used post-hoc tests include Tukey's HSD, Bonferroni correction, and Scheffe's method.
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