What Does A One Way Anova Tell You. Mar 22 2021 One-Way ANOVA One-Way ANOVA analysis of variance compares the means of two or more independent groups in order to determine whether there is statistical evidence that the associated population means are significantly different. Group mean and k number of groups.
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Group mean and k number of groups. If our test returns a significant f-statistic we may need to run a post-hoc test to tell us exactly which groups have a difference in means. Below I have mentioned the steps to perform one-way ANOVA in Excel along with a post-hoc test.
The motivation for performing a one-way ANOVA.
If your one-way ANOVA p-value is less than your significance level you know that some of the group means are different but not which pairs of groups. But it wont tell us which groups are different. This test is also known as. Why is that useful.
