The effect of guilt emotion on how a decision maker focuses on a problem was investigated in

Question:

The effect of guilt emotion on how a decision maker focuses on a problem was investigated in the Jan. 2007 issue of the Journal of Behavioral Decision Making (see Exercise 3.44, p. 153). A sample of 77 volunteer students participated in one portion of the experiment, where each was randomly assigned to one of three emotional states (guilt, anger, or neutral) through a reading/writing task. Immediately after the task, students were presented with a decision problem where the stated option had predominantly negative features (e.g., spending money on repairing a very old car). Prior to making the decision, the researchers asked each subject to list possible, more attractive alternatives. The researchers then compared the mean number of alternatives listed across the three emotional states with an analysis of variance for a completely randomized design. A partial ANOVA summary table is shown below.

a. What conclusion can you draw from the ANOVA results?
b. A multiple comparisons of means procedure was applied to the data using an experiment wise error rate of .05. Explain what the .05 represents.
c. The multiple comparisons yielded the following results. What conclusion can you draw?