p Values for Mann–Whitney U Statistic Small Samples (n
1
n
2
)
n
1
n
2
= 3U
0
123
00.25 0.10 0.05
10.500.200.10
20.40 0.20
30.600.35
40.50
n
l
n
2
= 4U
0
1234
00.20000.06670.02860.0143
10.40000.13330.05710.0286
20.60000.26670.11430.0571
30.40000.20000.1000
40.60000.31430.1714
50.42860.2429
6 0.57140.3429
70.4429
80.5571
n
1
n
2
= 5U
0
12345
00.16670.04760.01790.00790.0040
10.33330.09520.03570.01590.0079
20.50000.19050.07140.03170.0159
30.28570.12500.05560.0278
40.42860.19640.09520.0476
50.57140.28570.14290.0754
60.39290.20630.1111
70.50000.27780.1548
80.36510.2103
90.4524 ...
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