Tratta da: S.A. Glantz, Statistica per discipline bio-mediche, pag. 84 McGraw-Hill, Milano, 1988.
 
 

G.L.	p = 2	p = 3	p = 4	p = 5	p = 6	p = 7	p = 8	p = 9	p = 10
1	17,97	26,98	32,82	37,08	40,41	43,12	45,40	47,36	49,07
2	6,085	8,331	9,798	10,88	11,74	12,44	13,03	13,54	13,99
3	4,501	5,910	6,825	7,502	8,037	8,478	8,853	9,177	9,462
4	3,926	5,040	5,757	6,287	6,707	7,053	7,347	7,602	7,826
5	3,635	4,602	5,218	5,673	6,033	6,330	6,582	6,802	6,995
6	3,461	4,339	4,896	5,305	5,628	5,895	6,122	6,319	6,493
7	3,344	4,165	4,681	5,060	5,359	5,606	5,815	5,998	6,158
8	3,261	4,041	4,529	4,886	5,167	5,332	5,557	5,767	5,918
9	3,199	3,949	4,415	4,756	5,024	5,244	5,432	5,595	5,739
10	3,151	3,877	4,327	4,654	4,912	5,124	5,305	5,461	5,599
11	3,113	3,820	4,256	4,574	4,823	5,028	5,202	5,353	5,487
12	3,082	3,773	4,199	4,508	4,751	4,950	5,119	5,265	5,395
13	3,055	3,735	4,151	4,453	4,690	4,885	5,049	5,192	5,318
14	3,033	3,702	4,111	4,407	4,639	4,829	4,990	5,131	5,254
15	3,014	3,674	4,076	4,367	4,595	4,782	4,940	5,077	5,198
20	2,950	3,578	3,958	4,232	4,445	4,620	4,768	4,896	5,08
24	2,919	3,532	3,901	4,166	4,373	4,541	4,684	4,807	4,915
30	2,888	3,486	3,845	4,102	4,302	4,464	4,602	4,720	4,824
40	2,858	3,442	3,791	4,039	4,232	4,389	4,521	4,635	4,735
60	2,829	3,399	3,737	3,977	4,163	4,314	4,441	4,550	4,646
120	2,800	3,356	3,685	3,917	4,096	4,241	4,363	4,468	4,560
	2,772	3,314	3,633	3,858	4,030	4,170	4,286	4,387	4,474