Use Minitab to obtain the results of Tukey's test for the shear bond strength data from Example 1 in Section 13.1.

Approach The steps for obtaining the results of Tukey's test using Minitab, Excel, and StatCrunch are given in the Technology Step-by-Step.

Data from Example 13.1

Prosthodontists specialize in the restoration of oral function, including the use of dental implants, veneers, dentures, and crowns. Since repairing chipped veneer is less costly and time-consuming than complete restoration, a researcher wanted to compare the shear bond strength of different repair kits for repairs of chipped porcelain veneer in fixed prosthodontics. He randomly divided 20 porcelain specimens into four treatment groups. Group 1 specimens used the Cojet system, group 2 used the Silistor system, group 3 used the Cimara system, and group 4 specimens used the Ceramic Repair system. At the conclusion of the study, shear bond strength (in megapascals, \(\mathrm{MPa}\) ) was measured according to ISO 10477. The data in Table 1 are based on the results of the study. Verify that the requirements to perform one-way ANOVA are satisfied.

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Table 1 Cojet Silistor Cimara Ceramic Repair 15.4 17.2 5.5 11.0 12.9 14.3 7.7 12.4 17.2 17.6 12.2 13.5 16.6 21.6 11.4 8.9 19.3 17.5 16.4 8.1