Untitled

## Warning: package 'MASS' was built under R version 4.4.3

##    Treat Prewt Postwt  ej_9
## 1   Cont  80.7   80.2  -0.5
## 2   Cont  89.4   80.1  -9.3
## 3   Cont  91.8   86.4  -5.4
## 4   Cont  74.0   86.3  12.3
## 5   Cont  78.1   76.1  -2.0
## 6   Cont  88.3   78.1 -10.2
## 7   Cont  87.3   75.1 -12.2
## 8   Cont  75.1   86.7  11.6
## 9   Cont  80.6   73.5  -7.1
## 10  Cont  78.4   84.6   6.2
## 11  Cont  77.6   77.4  -0.2
## 12  Cont  88.7   79.5  -9.2
## 13  Cont  81.3   89.6   8.3
## 14  Cont  78.1   81.4   3.3
## 15  Cont  70.5   81.8  11.3
## 16  Cont  77.3   77.3   0.0
## 17  Cont  85.2   84.2  -1.0
## 18  Cont  86.0   75.4 -10.6
## 19  Cont  84.1   79.5  -4.6
## 20  Cont  79.7   73.0  -6.7
## 21  Cont  85.5   88.3   2.8
## 22  Cont  84.4   84.7   0.3
## 23  Cont  79.6   81.4   1.8
## 24  Cont  77.5   81.2   3.7
## 25  Cont  72.3   88.2  15.9
## 26  Cont  89.0   78.8 -10.2

##    Treat Prewt Postwt ej_9
## 4   Cont  74.0   86.3 12.3
## 8   Cont  75.1   86.7 11.6
## 10  Cont  78.4   84.6  6.2
## 13  Cont  81.3   89.6  8.3
## 14  Cont  78.1   81.4  3.3
## 15  Cont  70.5   81.8 11.3
## 21  Cont  85.5   88.3  2.8
## 22  Cont  84.4   84.7  0.3
## 23  Cont  79.6   81.4  1.8
## 24  Cont  77.5   81.2  3.7
## 25  Cont  72.3   88.2 15.9