11.55 Refer to Exercise 11.54. Use this MINITAB output to identify the differences in the treatment means.

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MINITAB output for Exercise 11.55 Tukey 95 Simultaneous Confidence Intervals All Pairwise Comparisons among Levels of stimulus Individual confidence level = 99.296 Stimulus = Stimulus subtracted from: C Lower Centre Upper -0.2535 0.0464 0.3463 0.1320 0.4417 0.9505 () -0.0260 0.2950 0.6160 -0.4660 -0.1450 0.1760 -0.50 0.00 0.50 1.00 Stimulus B subtracted from Stimulus Lower Centre Upper C 0.1290 0.3952 0.6519 -0.0316 0.2486 0.5288 -0.4716 -0.1914 0.0888 -6.50 0.00 0.50 1.00 Stimulus C-subtracted from Stimulus D Lower Centre Opper -0.4364 -0.1467 0.1431 -0.8760 -0.5867 -0.2969 -0.50 0.00 0.50 1.00 Stimulus D subtracted from: Stimulus Lover Centre -0.7426 -0.4400 Upper -0.1374 -0.50 0.00 0.50 1.00