The supermarket chain chooses a new logo from the three proposed options. A control group of 20 people scores the logos, which are shown in a random order, on a ten-point scale of attractiveness. Let µ1, µ2, and µ3 represent the mean scores for logos 1, 2, and 3 respectively. After using a multiple comparison procedure, the results were announced: The rating of logo 3 significantly differs from the ratings of logo 1. The rating of logo 1 is approximately equal to the rating of logo 2. The rating of logo 2 significantly differs from the ratings of logo 3. Which of the following sets of Tukey-Kramer intervals is consistent with the conclusions?
A)
B)
C)
D)
E)
Correct Answer:
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