Chi-square formula and degrees of freedom table

Alpha value = 5%			Alpha value = 1%
Degrees of freedom	Value		Degrees of freedom	Value
1	3.84		1	6.63
2	5.99		2	9.21
3	7.82		3	11.3
4	9.49		4	13.3
5	11.10		5	15.1
6	12.60		6	16.8
7	14.10		7	18.5
8	15.50		8	20.1
9	16.90		9	23.2
10	18.30		10	24.7
11	19.70		11	26.2
12	21.00		12	27.7
13	22.40		13	29.1
14	23.70		14	30.6
15	25.00		15	30.6
16	26.30		16	32.0
17	27.60		17	33.4
18	28.90		18	34.8
19	30.10		19	36.2
20	31.40		20	37.6
21	32.70		21	38.9
22	33.90		22	40.3
23	35.20		23	41.6
24	36.40		24	43.0
25	37.70		25	44.3
26	38.90		26	45.6
27	40.10		27	47.0
28	41.30		28	48.3
29	42.60		29	49.6
30	43.80		30	50.9