ANOVA will tell you whether there is a statistically significant difference in the population means of three or more groups ...

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Dunnet’s 1-way ANOVA is a test for comparing multiple groups. It is similar to a basic ANOVA but compares more than 2 groups. Dunnett’s 1-way ANOVA is similar to Tukey’s test or Fisher’s 1-way ANOVA.

One use case for the analysis of variance statistics technique is asking if student performances are the same in three classrooms taught by the same teacher but with different textbooks, says Dr.