n/y

0.8

0.9

0.95

0.975

0.99

3

2.972

6.649

13.640

27.448

68.740

4

1.592

2.829

4.380

6.455

10.448

5

1.184

1.984

2.850

3.854

5.500

6

0.980

1.596

2.219

2.889

3.900