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

When the null hypothesis in ANOVA is rejected, we can test for differences between treatment means by constructing confidence intervals. This allows us to estimate the range of plausible values for the true population mean difference between any two treatments, and to determine whether or not these intervals overlap. In addition, we can also perform post-hoc tests such as Tukey's HSD or Bonferroni correction to compare specific pairs of treatment means. Adding another treatment or doing an additional ANOVA are not necessary, and a t-test is only appropriate for comparing the means of two groups.

In ANOVA Analyses,when the Null Hypothesis Is Rejected,we Can Test