Refer to Exercise 11.56. Use this MINITAB output to identify the differences in the treatment means.
Reference:
Reaction Times versus Stimuli Twenty-seven people participated in an experiment to compare the effects of five different stimuli on reaction time. The experiment was run using a completely randomized design, and, regardless of the results of the analysis of variance, the experimenters wanted to compare stimuli A and D. The results of the experiment are given here. Use the MINITAB printout to complete the exercise.
a. Conduct an analysis of variance and test for a difference in the mean reaction times due to the five stimuli.
b. Compare stimuli A and D to see if there is a difference in mean reaction times.
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