Question

An ANOVA is as an Omnibus test. Briefly describe what this means, and also indicate why post-hoc tests are important.

Answer 1

## Q) An ANOVA is as an Omnibus test. Briefly describe what this means, and also indicate why post-hoc tests are important.

answer : Yes An ANOVA is an Omnibus test .

It is important to realize that the one way ANOVA or ANOVA is an omnibus test statistic test .

it can not tell you which specific groups were statistically significantly different from each other , only that at least two groups were. To determine which specific groups differed from each other , you need to use a post hoc test .

by using post hoc tests we can find out which treatment mean is differ.

and which is differ and significant and which is not .

hence post hoc test is very important for the finding out significant of the mean in anova test . it is valid only when we enough evidence that null hypothesis is rejected .