1.

For our rst experiment, we used 20, ve year old students. Ten of the students received a Placebo pill for two weeks and ten used our new drug: NO-IMP for two weeks. At the end of the two weeks all of the children were measured for Impulsive Activity in their classrooms. The nal data is presented below. A "1" indicates the group that they were assigned to. Part Placebo NO-IMP lmpulsivity 1 1 O 10 2 0 1 5 3 1 O 11 4 0 1 3 5 0 1 9 6 1 D 9 7 1 O 15 8 1 D 17 9 0 1 11 10 1 O 14 11 0 1 4 12 0 1 8 13 1 D 12 14 0 1 6 15 1 O 8 16 0 1 10 17 1 O 14 18 1 O 11 19 0 1 7 20 0 1 5 Our second experiment is a follow-up to the rst experiment. In this case, we used a group of 30, ve year old students. Ten of the students received a Placebo pill for two weeks, Ten used a low dose of NO-IMP, and ten used a high dose of NO-IVIP for two weeks. At the end of the two weeks all of the children were measured for Impulsive Activity in their classrooms. The nal data is presented below (they are organized by condition to make it easier for you). Fart Placebo LO NO-IMP HI NO-IMF lmpulsivity 1 1 O 0 10 2 1 0 0 12 3 1 U D 11 4 1 O 0 15 5 1 O 0 19 6 1 0 D 11 7 1 O D 15 B 1 O 0 17 9 1 O D 11 10 1 0 D 14 11 0 1 0 4 12 O 1 0 8 13 O 1 0 2 14 O 1 D 6 15 0 1 0 8 16 O 1 0 3 17 O 1 D 4 18 0 1 0 6 19 0 1 0 7 20 O 1 0 5 21 O 0 1 12 22 O 0 1 13 23 0 O 1 7 24 O O 1 9 25 0 (l 1 14 26 O 0 1 12 27 0 O 1 1O 28 O 0 1 8 29 O O 1 14 30 O 0 1 15