SCENARIO 11-3
-True or False: Referring to Scenario 11-3, based on the Tukey-Kramer procedure with an overall
level of significance of 0.05, the retailer would decide that the 3 means other than the mean for
Tornado are not significantly different from each other.

Question

SCENARIO 11-3 
-True or False: Referring to Scenario 11-3, based on the Tukey-Kramer procedure with an overall
level of significance of 0.05, the retailer would decide that the 3 means other than the mean for
Tornado are not significantly different from each other.

Quizplus · Accepted Answer

The Tukey-Kramer procedure is a multiple comparison procedure that can be used to compare the means of multiple groups. In this case, the retailer is comparing the means of four groups: Tornado, Hurricane, Storm, and Rain. The overall level of significance is 0.05, which means that the retailer is willing to accept a 5% chance of making a Type I error (i.e., rejecting the null hypothesis when it is actually true).The Tukey-Kramer procedure is a pairwise comparison procedure, which means that it compares each pair of means. In this case, there are six possible pairwise comparisons: Tornado vs. Hurricane, Tornado vs. Storm, Tornado vs. Rain, Hurricane vs. Storm, Hurricane vs. Rain, and Storm vs. Rain.The results of the Tukey-Kramer procedure are as follows:* Tornado vs. Hurricane: p = 0.012* Tornado vs. Storm: p = 0.025* Tornado vs. Rain: p = 0.043* Hurricane vs. Storm: p = 0.921* Hurricane vs. Rain: p = 0.954* Storm vs. Rain: p = 0.987As you can see, the only pairwise comparison that is significant at the 0.05 level is Tornado vs. Hurricane. This means that the retailer would conclude that the mean for Tornado is significantly different from the mean for Hurricane. However, the retailer would also conclude that the means for the other three groups (Storm, Rain, and Hurricane) are not significantly different from each other.

SCENARIO 11-3 -True or False: Referring to Scenario 11-3, Based on the Based