Couples Husband Wife Di     Ui
(eqn 2)
Rank of
xi1
Rank of
xi2
Diff (ri=ri1-ri2)
(Eqn. 1)
|ri| .ui ri2 Rank of non-zero absolute diff
  xi1 xi2 (xi1-xi2)   (ri1) (ri2) ri=ri1– ri2     r(|di|)
1 4 5 -1 -1 K–1 K -1 -1 1 3
2 1 5 -4 -1 K–1 K -1 -1 1 7.5
3 6 5 1 1 K K–1 1 -1 1 3
4 1 6 -5 -1 K–1 K -1 -1 1 9
5 7 5 2 1 K K–1 1 1 1 6
6 1 9 -8 -1 K–1 K -1 -1 1 10
7 4 4 0 0 K-0.5 K-0.5 0 0 0
8 2 6 -4 -1 K–1 K -1 -1 1 7.5
9 8 8 0 0 K-0.5 K-0.5 0 0 0
10 5 5 0 0 K-0.5 K-0.5 0 0 0
11 4 4 0 0 K-0.5 K-0.5 0 0 0
12 4 5 -1 -1 K–1 K -1 -1 1 3
13 5 6 -1 -1 K–1 K -1 -1 1 3
14 5 6 -1 -1 K–1 K -1 -1 1 3
15 4 4 0 0 K-0.5 K-0.5 0 0 0
Total               -6 10  
Table 2: Analysis of family size preferences by couples using modified sign tests.