please explain in detail

Researchers wanted to determine if the psychological profile of healthy children was different than that for children suffering from recurrent abdominal pain (RAP) or recurring headaches. Results of the study are summarized in the following table. Determine which pairwise means of the three treatment groups, if any, are different using a familywise error rate of alpha - 0.05. n Sample Mean Sample Variance control group 11.7 21.6 RAP 9.0 13.0 headache 12.4 8.4 O The mean score of the Control Group is different from the mean score of the RAP group. The mean scores of each pairwise group are different. There is not enough evidence to suggest that the means are different. The mean score of the Control Group is different from the mean score of the headache group