for combined staff and robot. To rank the means, Tukey’s multiple comparisons procedure was applied.

a. How many pairwise comparisons are made? List them.

b. Tukey’s procedure was applied using an experimentwise error rate of .05. Interpret this value.

c. The researchers reported that all three means were significantly different from the others. Based on this result, make a comment about the perceived quality of service robots in hotels. Applying the Concepts—Intermediate