Write a paragraph describing an experimental PretestPosttest
Write a paragraph describing an experimental Pre-test/Post-test study of your creation that employs a control group, a placebo group, and two treatment groups. Include a graphical representation of the study using R, O, and X and clearly label each group
Solution
We want to test if the exercise can lost weight. We set 10 persons with exercise as control group, ands 10 persons without exercise as placebo group. Then we can see if there is a significant differece.
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| SS | df | MS | F | |
| Between | 24 | 2 | 12 | 6 | 
| Within | 66 | 33 | 2 | |
| Total | 90 | 35 | 

