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 70 11.7 21.6 RAP 70 9.0 13.0 headache 70 12.4 8.4 O The mean scores of each pairwise group are different. O The mean score of the Control Group is different from the mean score of the RAP group. O The mean score of the Control Group is different from the mean score of the headache group. O There is not enough evidence to suggest that the means are different.Which of the two tests (test for treatment and test for blocks) should reject the null hypothesis using a level of significance of 0.05? O Only test for treatment O Both tests O Only test for blocks O Neither testUsing the tables in the textbook, find the critical value from the Studentized range distribution for HO: H1 = H2 = 13 = 14 = 15, with n = 35 at a = 0.01. Provide the answer to three decimal places (example, 3.254).A researcher 1wishes to determine whether there is a difference in the average age of middle school. high school. and college teachers. Teachers are randomly.r selected. Their ages are recorded below. Use or. = Dill. Which of the following is a correct statement about the means? M'ddl l e High School College School Teachers Teachers Teachers 23 39 2B 45 2? 45 25 61 52 36 3? 35 O The mean age of middle school teachers is different from the mean age of college teachers. C) The mean age of middle school teachers is different from the mean age of high school teachers. 0 There is not enough evidence to suggest that the means are different C} The mean age of high school teachers is different from the mean age of college teachers