========== ====== ====== ====== ====== ====== ======= ======= 显著水平 0.5 0.25 0.1 0.05 0.01 0.005 0.001 自由度 ========== ====== ====== ====== ====== ====== ======= ======= 1 0.455 1.323 2.706 3.841 6.635 7.879 10.828 2 1.386 2.773 4.605 5.991 9.21 10.597 13.816 3 2.366 4.108 6.251 7.815 11.345 12.838 16.266 4 3.357 5.385 7.779 9.488 13.277 14.86 18.467 5 4.351 6.626 9.236 11.07 15.086 16.75 20.515 6 5.348 7.841 10.645 12.592 16.812 18.548 22.458 7 6.346 9.037 12.017 14.067 18.475 20.278 24.322 8 7.344 10.219 13.362 15.507 20.09 21.955 26.124 9 8.343 11.389 14.684 16.919 21.666 23.589 27.877 10 9.342 12.549 15.987 18.307 23.209 25.188 29.588 11 10.341 13.701 17.275 19.675 24.725 26.757 31.264 12 11.34 14.845 18.549 21.026 26.217 28.3 32.909 13 12.34 15.984 19.812 22.362 27.688 29.819 34.528 14 13.339 17.117 21.064 23.685 29.141 31.319 36.123 15 14.339 18.245 22.307 24.996 30.578 32.801 37.697 16 15.338 19.369 23.542 26.296 32 34.267 39.252 17 16.338 20.489 24.769 27.587 33.409 35.718 40.79 18 17.338 21.605 25.989 28.869 34.805 37.156 42.312 19 18.338 22.718 27.204 30.144 36.191 38.582 43.82 20 19.337 23.828 28.412 31.41 37.566 39.997 45.315 21 20.337 24.935 29.615 32.671 38.932 41.401 46.797 22 21.337 26.039 30.813 33.924 40.289 42.796 48.268 23 22.337 27.141 32.007 35.172 41.638 44.181 49.728 24 23.337 28.241 33.196 36.415 42.98 45.559 51.179 25 24.337 29.339 34.382 37.652 44.314 46.928 52.62 26 25.336 30.435 35.563 38.885 45.642 48.29 54.052 27 26.336 31.528 36.741 40.113 46.963 49.645 55.476 28 27.336 32.62 37.916 41.337 48.278 50.993 56.892 29 28.336 33.711 39.087 42.557 49.588 52.336 58.301 30 29.336 34.8 40.256 43.773 50.892 53.672 59.703 31 30.336 35.887 41.422 44.985 52.191 55.003 61.098 32 31.336 36.973 42.585 46.194 53.486 56.328 62.487 33 32.336 38.058 43.745 47.4 54.776 57.648 63.87 34 33.336 39.141 44.903 48.602 56.061 58.964 65.247 35 34.336 40.223 46.059 49.802 57.342 60.275 66.619 36 35.336 41.304 47.212 50.998 58.619 61.581 67.985 37 36.336 42.383 48.363 52.192 59.893 62.883 69.346 38 37.335 43.462 49.513 53.384 61.162 64.181 70.703 39 38.335 44.539 50.66 54.572 62.428 65.476 72.055 40 39.335 45.616 51.805 55.758 63.691 66.766 73.402 41 40.335 46.692 52.949 56.942 64.95 68.053 74.745 42 41.335 47.766 54.09 58.124 66.206 69.336 76.084 43 42.335 48.84 55.23 59.304 67.459 70.616 77.419 44 43.335 49.913 56.369 60.481 68.71 71.893 78.75 ========== ====== ====== ====== ====== ====== ======= =======