TABLE 3.4 Critical values of the χ2 distribution
P
df 0.995 0.975 0.9 0.5 0.1 0.05* 0.025 0.01 0.005
1 0.000 0.000 0.016 0.455 2.706 3.841 5.024 6.635 7.879
2 0.010 0.051 0.211 1.386 4.605 5.991 7.378 9.210 10.597
3 0.072 0.216 0.584 2.366 6.251 7.815 9.348 11.345 12.838
4 0.207 0.484 1.064 3.357 7.779 9.488 11.143 13.277 14.860
5 0.412 0.831 1.610 4.351 9.236 11.070 12.832 15.086 16.750
6 0.676 1.237 2.204 5.348 10.645 12.592 14.449 16.812 18.548
7 0.989 1.690 2.833 6.346 12.017 14.067 16.013 18.475 20.278
8 1.344 2.180 3.490 7.344 13.362 15.507 17.535 20.090 21.955
9 1.735 2.700 4.168 8.343 14.684 16.919 19.023 21.666 23.589
10 2.156 3.247 4.865 9.342 15.987 18.307 20.483 23.209 25.188
11 2.603 3.816 5.578 10.341 17.275 19.675 21.920 24.725 26.757
12 3.074 4.404 6.304 11.340 18.549 21.026 23.337 26.217 28.300
13 3.565 5.009 7.042 12.340 19.812 22.362 24.736 27.688 29.819
14 4.075 5.629 7.790 13.339 21.064 23.685 26.119 29.141 31.319
15 4.601 6.262 8.547 14.339 22.307 24.996 27.488 30.578 32.801