Lab 7: Nonparametric Statistics

1. To determine the effectiveness of learning a cartwheel by watching a video, a gymnastics teacher randomly divided 15 novice gymnasts into 3 groups of 5 students each. One group (control) viewed a live demonstration of a cartwheel one time and then was tested. A second group (video) watched a video of a cartwheel 10 times, and then was tested. The third group (live) watched 10 live demonstrations of a cartwheel and then was tested. All 15 subjects were ranked on their ability to perform the cartwheel with the following results (1 is the highest rank, 15 is the lowest rank).

data
Control	Video	Live
8	2	1
12	5	3
13	7	4
14	9	6
15	11	10

1. Test to see if there are significant differences in the group's ability to perform the cartwheel.
2. If significant results are found, perform all 3 post-hoc tests and write up the conclusion for each. Which group performed the best?

1. In the NCAA college football rankings, the eastern teams seem to have an advantage over western teams. The data set, NCAA.sav shows a listing of the rankings for the top 25 teams by area of the country. Is there a significant difference in favor of the east?