In ANOVA analyses, when the null hypothesis is rejected, we can test for differences between treatment means by _____________.
A) Constructing confidence intervals
B) Adding another treatment
C) Doing an additional ANOVA
D) Doing a t test

Question

Quizplus · Accepted Answer

Constructing confidence intervals allows us to see which treatment means are significantly different from each other. Adding another treatment or doing an additional ANOVA are irrelevant once the null hypothesis has been rejected, and doing a t test would only allow us to compare two treatments at a time, whereas constructing confidence intervals allows us to compare all treatments simultaneously.

In ANOVA Analyses, When the Null Hypothesis Is Rejected, We