t kritikus értékei kétvéges próbához.

Az első oszlopban a szabadsági fok látható.

5% 2.5% 1% 0.5% 0.1% 0.05%

1 6.314 12.71 31.82 63.66 318.3 636.612

2 2.920 4.303 6.965 9.925 22.3 31.60

3 2.353 3.182 4.541 5.841 10.2 12.92

4 2.132 2.776 3.747 4.604 7.17 8.610

5 2.015 2.571 3.365 4.032 5.89 6.869

6 1.943 2.447 3.143 3.707 5.208 5.959

7 1.894 2.365 2.998 3.499 4.785 5.408

8 1.860 2.306 2.896 3.355 4.501 5.041

9 1.833 2.262 2.821 3.250 4.297 4.781

10 1.812 2.228 2.764 3.169 4.144 4.587

11 1.796 2.201 2.718 3.106 4.025 4.437

12 1.782 2.179 2.681 3.055 3.930 4.318

13 1.771 2.160 2.650 3.012 3.852 4.221

14 1.761 2.145 2.624 2.977 3.787 4.140

15 1.753 2.131 2.602 2.947 3.733 4.073

16 1.746 2.120 2.583 2.921 3.686 4.015

17 1.740 2.110 2.567 2.898 3.646 3.965

18 1.734 2.101 2.552 2.878 3.610 3.922

19 1.729 2.093 2.539 2.861 3.579 3.883

20 1.725 2.086 2.528 2.845 3.552 3.850

21 1.721 2.080 2.518 2.831 3.527 3.819

22 1.717 2.074 2.508 2.819 3.505 3.792

23 1.714 2.069 2.500 2.807 3.485 3.768

24 1.711 2.064 2.492 2.797 3.467 3.745

25 1.708 2.060 2.485 2.787 3.450 3.725

26 1.706 2.056 2.479 2.779 3.435 3.707

27 1.703 2.052 2.473 2.771 3.421 3.690

28 1.701 2.048 2.467 2.763 3.408 3.674

29 1.699 2.045 2.462 2.756 3.396 3.659

30 1.697 2.042 2.457 2.750 3.385 3.646

32 1.694 2.037 2.449 2.738 3.365 3.622

34 1.691 2.032 2.441 2.728 3.348 3.601

36 1.688 2.028 2.434 2.719 3.333 3.582

38 1.686 2.024 2.429 2.712 3.319 3.566

40 1.684 2.021 2.423 2.704 3.307 3.551

42 1.682 2.018 2.418 2.698 3.296 3.538

44 1.680 2.015 2.414 2.692 3.286 3.526

46 1.679 2.013 2.410 2.687 3.277 3.515

48 1.677 2.011 2.407 2.682 3.269 3.505

50 1.676 2.009 2.403 2.678 3.261 3.496

60 1.671 2.000 2.390 2.660 3.232 3.460

70 1.667 1.994 2.381 2.648 3.211 3.435

80 1.664 1.990 2.374 2.639 3.195 3.416

90 1.662 1.987 2.368 2.632 3.183 3.402

100 1.660 1.984 2.364 2.626 3.174 3.390