1、t值表nP(2): 0.5 0.2 0.1 0.05 0.02 0.01 0.005 0.002 0.001P(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 31.821 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.
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 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.
3、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 1.782 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 1.7
4、53 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 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
5、 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 1.319 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
6、 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 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
7、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 0.682 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 0.68
8、1 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 2.426 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
9、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 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 3.2905注： P（2）是双侧的概率，P（1）是单侧的概率，n是自由度。
