When testing whether the means of more than 2 groups are statistically different, you could use a one-way ANOVA. But if you have multiple treatment groups, you can use Dunnett’s one-way ANOVA. ANOVA ...

ANOVA tests. Let us take the example of an investigation into the effects of three different medications (explanatory variable) on weight change in kg and cholesterol levels in mg/dL (outcome ...

This web calculator conducts a two-way ANOVA test. The calculator includes a video definition, an explanation of the formula and practice examples.

Understanding how to use the test is important because you cannot always rely on the ANOVA test. An example would be when ... It can, however, work with only two. There should be a sample size ...

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