EXERCISE NO. 5 : Drawing Inferences (Two Sample) Problem 1: A vicious debate between behaviorists and traditional medical doctors concerns the merits of using the stimulant Ritalin in treating childhood hyperactivity. A large group of hyperactive children in an urban school system were randomly assigned to either a behavior modification program or a drug therapy program. The dependent variable measured is the children's hyperactivity score after 18 weeks of treatment. Use the data shown directly below to determine if there is a significant difference on these children's hyperactivity scores. Behavior 22 24 27 18 21 19 18 17 14 17 20 16 13 20 16 12 14 22 23 18 Drug 26 32 31 20 34 36 22 29 27 25 24 32 24 20 32 32 29 27 33 30