1、原文地址 x2分布临界值表（卡方分布）Pn0.995 0.99 0.975 0.95 0.9 0.75 0.5 0.25 0.1 0.05 0.025 0.01 0.0051 0.02 0.1 0.45 1.32 2.71 3.84 5.02 6.63 7.882 0.01 0.02 0.02 0.1 0.21 0.58 1.39 2.77 4.61 5.99 7.38 9.21 10.63 0.07 0.11 0.22 0.35 0.58 1.21 2.37 4.11 6.25 7.81 9.35 11.34 12.844 0.21 0.3 0.48 0.71 1.06 1.92 3.36
2、5.39 7.78 9.49 11.14 13.28 14.865 0.41 0.55 0.83 1.15 1.61 2.67 4.35 6.63 9.24 11.07 12.83 15.09 16.756 0.68 0.87 1.24 1.64 2.2 3.45 5.35 7.84 10.64 12.59 14.45 16.81 18.557 0.99 1.24 1.69 2.17 2.83 4.25 6.35 9.04 12.02 14.07 16.01 18.48 20.288 1.34 1.65 2.18 2.73 3.4 5.07 7.34 10.22 13.36 15.51 17.
3、53 20.09 21.969 1.73 2.09 2.7 3.33 4.17 5.9 8.34 11.39 14.68 16.92 19.02 21.67 23.5910 2.16 2.56 3.25 3.94 4.87 6.74 9.34 12.55 15.99 18.31 20.48 23.21 25.1911 2.6 3.05 3.82 4.57 5.58 7.58 10.34 13.7 17.28 19.68 21.92 24.72 26.7612 3.07 3.57 4.4 5.23 6.3 8.44 11.34 14.85 18.55 21.03 23.34 26.22 28.3
4、13 3.57 4.11 5.01 5.89 7.04 9.3 12.34 15.98 19.81 22.36 24.74 27.69 29.8214 4.07 4.66 5.63 6.57 7.79 10.17 13.34 17.12 21.06 23.68 26.12 29.14 31.3215 4.6 5.23 6.27 7.26 8.55 11.04 14.34 18.25 22.31 25 27.49 30.58 32.816 5.14 5.81 6.91 7.96 9.31 11.91 15.34 19.37 23.54 26.3 28.85 32 34.2717 5.7 6.41
5、 7.56 8.67 10.09 12.79 16.34 20.49 24.77 27.59 30.19 33.41 35.7218 6.26 7.01 8.23 9.39 10.86 13.68 17.34 21.6 25.99 28.87 31.53 34.81 37.1619 6.84 7.63 8.91 10.12 11.65 14.56 18.34 22.72 27.2 30.14 32.85 36.19 38.5820 7.43 8.26 9.59 10.85 12.44 15.45 19.34 23.83 28.41 31.41 34.17 37.57 4021 8.03 8.9
6、 10.28 11.59 13.24 16.34 20.34 24.93 29.62 32.67 35.48 38.93 41.422 8.64 9.54 10.98 12.34 14.04 17.24 21.34 26.04 30.81 33.92 36.78 40.29 42.823 9.26 10.2 11.69 13.09 14.85 18.14 22.34 27.14 32.01 35.17 38.08 41.64 44.1824 9.89 10.86 12.4 13.85 15.66 19.04 23.34 28.24 33.2 36.42 39.36 42.98 45.5625
7、10.52 11.52 13.12 14.61 16.47 19.94 24.34 29.34 34.38 37.65 40.65 44.31 46.9326 11.16 12.2 13.84 15.38 17.29 20.84 25.34 30.43 35.56 38.89 41.92 45.64 48.2927 11.81 12.88 14.57 16.15 18.11 21.75 26.34 31.53 36.74 40.11 43.19 46.96 49.6428 12.46 13.56 15.31 16.93 18.94 22.66 27.34 32.62 37.92 41.34 4
8、4.46 48.28 50.9929 13.12 14.26 16.05 17.71 19.77 23.57 28.34 33.71 39.09 42.56 45.72 49.59 52.3430 13.79 14.95 16.79 18.49 20.6 24.48 29.34 34.8 40.26 43.77 46.98 50.89 53.6740 20.71 22.16 24.43 26.51 29.05 33.66 39.34 45.62 51.8 55.76 59.34 63.69 66.7750 27.99 29.71 32.36 34.76 37.69 42.94 49.33 56
9、.33 63.17 67.5 71.42 76.15 79.4960 35.53 37.48 40.48 43.19 46.46 52.29 59.33 66.98 74.4 79.08 83.3 88.38 91.9570 43.28 45.44 48.76 51.74 55.33 61.7 69.33 77.58 85.53 90.53 95.02 100.42 104.2280 51.17 53.54 57.15 60.39 64.28 71.14 79.33 88.13 96.58 101.88 106.63 112.33 116.3290 59.2 61.75 65.65 69.13
10、 73.29 80.62 89.33 98.64 107.56 113.14 118.14 124.12 128.3100 67.33 70.06 74.22 77.93 82.36 90.13 99.33 109.14 118.5 124.34 129.56 135.81 140.17t检验（t-test）临界值表（临界置信水平） P(2): 0.5 0.2 0.1 0.05 0.02 0.01 0.005 0.002 0.001nP(1): 0.25 0.1 0.05 0.025 0.01 0.005 0.0025 0.001 0.00051 1 3.078 6.314 12.706 31
11、.821 63.657 127.321 318.309 636.6192 0.816 1.886 2.92 4.303 6.965 9.925 14.089 22.327 31.5993 0.765 1.638 2.353 3.182 4.541 5.841 7.453 10.215 12.9244 0.741 1.533 2.132 2.776 3.747 4.604 5.598 7.173 8.615 0.727 1.476 2.015 2.571 3.365 4.032 4.773 5.893 6.8696 0.718 1.44 1.943 2.447 3.143 3.707 4.317
12、 5.208 5.9597 0.711 1.415 1.895 2.365 2.998 3.499 4.029 4.785 5.4088 0.706 1.397 1.86 2.306 2.896 3.355 3.833 4.501 5.0419 0.703 1.383 1.833 2.262 2.821 3.25 3.69 4.297 4.78110 0.7 1.372 1.812 2.228 2.764 3.169 3.581 4.144 4.58711 0.697 1.363 1.796 2.201 2.718 3.106 3.497 4.025 4.43712 0.695 1.356 1
13、.782 2.179 2.681 3.055 3.428 3.93 4.31813 0.694 1.35 1.771 2.16 2.65 3.012 3.372 3.852 4.22114 0.692 1.345 1.761 2.145 2.624 2.977 3.326 3.787 4.1415 0.691 1.341 1.753 2.131 2.602 2.947 3.286 3.733 4.07316 0.69 1.337 1.746 2.12 2.583 2.921 3.252 3.686 4.01517 0.689 1.333 1.74 2.11 2.567 2.898 3.222
14、3.646 3.96518 0.688 1.33 1.734 2.101 2.552 2.878 3.197 3.61 3.92219 0.688 1.328 1.729 2.093 2.539 2.861 3.174 3.579 3.88320 0.687 1.325 1.725 2.086 2.528 2.845 3.153 3.552 3.8521 0.686 1.323 1.721 2.08 2.518 2.831 3.135 3.527 3.81922 0.686 1.321 1.717 2.074 2.508 2.819 3.119 3.505 3.79223 0.685 1.31
15、9 1.714 2.069 2.5 2.807 3.104 3.485 3.76824 0.685 1.318 1.711 2.064 2.492 2.797 3.091 3.467 3.74525 0.684 1.316 1.708 2.06 2.485 2.787 3.078 3.45 3.72526 0.684 1.315 1.706 2.056 2.479 2.779 3.067 3.435 3.70727 0.684 1.314 1.703 2.052 2.473 2.771 3.057 3.421 3.6928 0.683 1.313 1.701 2.048 2.467 2.763
16、 3.047 3.408 3.67429 0.683 1.311 1.699 2.045 2.462 2.756 3.038 3.396 3.65930 0.683 1.31 1.697 2.042 2.457 2.75 3.03 3.385 3.64631 0.682 1.309 1.696 2.04 2.453 2.744 3.022 3.375 3.63332 0.682 1.309 1.694 2.037 2.449 2.738 3.015 3.365 3.62233 0.682 1.308 1.692 2.035 2.445 2.733 3.008 3.356 3.61134 0.6
17、82 1.307 1.091 2.032 2.441 2.728 3.002 3.348 3.60135 0.682 1.306 1.69 2.03 2.438 2.724 2.996 3.34 3.59136 0.681 1.306 1.688 2.028 2.434 2.719 2.99 3.333 3.58237 0.681 1.305 1.687 2.026 2.431 2.715 2.985 3.326 3.57438 0.681 1.304 1.686 2.024 2.429 2.712 2.98 3.319 3.56639 0.681 1.304 1.685 2.023 2.42
18、6 2.708 2.976 3.313 3.55840 0.681 1.303 1.684 2.021 2.423 2.704 2.971 3.307 3.55150 0.679 1.299 1.676 2.009 2.403 2.678 2.937 3.261 3.49660 0.679 1.296 1.671 2 2.39 2.66 2.915 3.232 3.4670 0.678 1.294 1.667 1.994 2.381 2.648 2.899 3.211 3.43680 0.678 1.292 1.664 1.99 2.374 2.639 2.887 3.195 3.41690
19、0.677 1.291 1.662 1.987 2.368 2.632 2.878 3.183 3.402100 0.677 1.29 1.66 1.984 2.364 2.626 2.871 3.174 3.39200 0.676 1.286 1.653 1.972 2.345 2.601 2.839 3.131 3.34500 0.675 1.283 1.648 1.965 2.334 2.586 2.82 3.107 3.311000 0.675 1.282 1.646 1.962 2.33 2.581 2.813 3.098 3.3 0.6745 1.2816 1.6449 1.96 2.3263 2.5758 2.807 3.0902.本表中,如果显著性水平 a=0.05,则 1-a/2=0.975,到表中找 0.975,可以看到表的行和列值是 1.96,即为 Z 在 0.05 显著性水平上的临界值.
