Wilcoxon Signed-Rank Test

Critical values of T in the Wilcoxon matched-pairs signed rank test:

One Tail	0.05	0.025	0.01	0.005
Two Tail	0.1	0.05	0.02	0.01
n = 6	2	0	-	-
7	3	2	0	-
8	5	3	1	0
9	8	5	3	1
10	10	8	5	3
11	13	10	7	5
12	17	13	9	7
13	21	17	12	9
14	25	21	15	12
15	30	25	19	15
16	35	29	23	19
17	41	34	27	23
18	47	40	32	27
19	53	46	37	32
20	60	52	43	37