Design and Analysis of Experiments by Douglas Montgomery. Heath Rushing

      The interpretation of this report is the same as it was for Tukey’s test. However, this procedure does not control for the experimentwise error rate. Notice how the confidence intervals for the differences between treatment means are smaller when created using the Fisher Multiple Comparison method than the same intervals that are created when using Tukey’s method.

      3. Leave the Fit Y by X report open for the next example.

      Example 3.9 Dunnett’s Multiple Comparison

      1. Return to the Fit Y by X platform from the previous example.