Consider the Following Calculations for a One-Way Analysis of Variance

Short Answer

Consider the following calculations for a one-way analysis of variance from a completely randomized design with 20 total observations.The response variable is sales in millions of dollars,and the four treatment levels represent the four regions that the company serves. Perform a pairwise comparison between treatment mean 3 and treatment mean 4 by computing a Tukey 90 percent simultaneous confidence interval.