obs diff signedrank
1 4.1 18
2 -0.3 -4.5
3 3.5 16
4 1 11
5 1.2 12
6 -0.7 -9
7 0.2 2.5
8 0.3 4.5
9 4.9 19
10 -0.5 -7
11 2.7 14
12 80.4 20
13 1.9 13
14 0 1
15 0.8 10
16 3.2 15
17 0.6 8
18 -0.2 -2.5
19 0.4 6
20 3.6 17