Problem: In an experiment, participants were divided into 4 groups. There were 20 participants in each group, so the degrees of freedom (error) for this study was 80 - 4 = 76. Tukey's HSD test was performed on the data.
Required:
Question 1: Calculate the p value for each pair based on the Q value given below. You will want to use the Studentized Range Calculator.
Question 2: Which differences are significant at the .05 level?