PCV levels of Non smokers (xi) Rank of xi
(rix)		 Adjusted PCV levels of smokers Rank of xj2
(rjy)
38 7 45.6 29
44 27 36.1 3.5
43 22.5 39.0 11
44 27 46.6 31
40 16.5 39.0 11
38 7 39.0 11
40 16.5 43.7 24.5
41 19 39.0 11
40 16.5 43.7 24.5
43 22.5 39.9 14
40 16.5 36.1 3.5
46 30 37.1 5
42 20.5 35.2 2
44 27 31.4 1
42 20.5   182
38 7    
49 32    
39 11    
Sum of Ranks (R.j) 346    
Table 3: Ranks of PCV levels of Nonsmokers and smokers for use with the Mann-Whitney U test.