These are pretreatment and posttreatment weights of young girls who received one of three
different treatments for anorexia over a fixed period of time, with the control group
receiving the standard treatment.  (The source of the data indicates the weights are in
kg, but I have to think that's a mistake.  Perhaps the weights are in lbs.)  *(Note: Be
sure to notice that for your convenience the weight changes are given below the original
data.)*


 cognitive
behavioral      control       family
 treatment                    therapy
___________  ____________  ____________
pre    post   pre    post   pre    post
----  -----  -----  -----  -----  -----

80.5   82.2   80.7   80.2   83.8   95.2
84.9   85.6   89.4   80.1   83.3   94.3
81.5   81.4   91.8   86.4   86.0   91.5
82.6   81.9   74.0   86.3   82.5   91.9
79.9   76.4   78.1   76.1   86.7  100.3
88.7  103.6   88.3   78.1   79.6   76.7
94.9   98.4   87.3   75.1   76.9   76.8
76.3   93.4   75.1   86.7   94.2  101.6
81.0   73.4   80.6   73.5   73.4   94.9
80.5   82.1   78.4   84.6   80.5   75.2
85.0   96.7   77.6   77.4   81.6   77.8
89.2   95.3   88.7   79.5   82.1   95.5
81.3   82.4   81.3   89.6   77.6   90.7
76.5   72.5   78.1   81.4   83.5   92.5
70.0   90.9   70.5   81.8   89.9   93.8
80.4   71.3   77.3   77.3   86.0   91.7
83.3   85.4   85.2   84.2   87.3   98.0
83.0   81.6   86.0   75.4  
87.7   89.1   84.1   79.5  
84.2   83.9   79.7   73.0  
86.4   82.7   85.5   88.3  
76.5   75.7   84.4   84.7  
80.2   82.6   79.6   81.4  
87.8  100.4   77.5   81.2  
83.3   85.2   72.3   88.2  
79.7   83.6   89.0   78.8 
84.5   84.6  
80.8   96.2  
87.4   86.7  


The weight changes below are what should be used for the homework.

 
 1.7000   -0.5000  11.4000
 0.7000   -9.3000  11.0000
-0.1000   -5.4000   5.5000
-0.7000   12.3000   9.4000
-3.5000   -2.0000  13.6000
14.9000  -10.2000  -2.9000
 3.5000  -12.2000  -0.1000
17.1000   11.6000   7.4000
-7.6000   -7.1000  21.5000
 1.6000    6.2000  -5.3000
11.7000   -0.2000  -3.8000
 6.1000   -9.2000  13.4000
 1.1000    8.3000  13.1000
-4.0000    3.3000   9.0000
20.9000   11.3000   3.9000
-9.1000    0.0000   5.7000
 2.1000   -1.0000  10.7000
-1.4000  -10.6000   
 1.4000   -4.6000   
-0.3000   -6.7000   
-3.7000    2.8000   
-0.8000    0.3000   
 2.4000    1.8000   
12.6000    3.7000  
 1.9000   15.9000   
 3.9000  -10.2000  
 0.1000    
15.4000    
-0.7000