中医书籍-->西医备考-->预防医学-->第十六章 统计学方法基本概念和步骤-->附表19-1 t值表
附表19-1 t值表
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| ν |
P（双侧）0.05 |
0.01 |
0.001 |
ν |
0.05 |
0.01 |
0.001 |
| |
P（单侧）0.025 |
0.005 |
0.0005 |
|
0.025 |
0.005 |
0.0005 |
| 1 |
12.706 |
63.657 |
636.618 |
21 |
2.080 |
2.831 |
3.819 |
| 2 |
4.303 |
9.925 |
31.598 |
22 |
2.072 |
2.819 |
3.792 |
| 3 |
3.182 |
5.841 |
12.924 |
23 |
2.069 |
2.807 |
3.767 |
| 4 |
2.776 |
4.604 |
8.610 |
24 |
2.064 |
2.797 |
3.745 |
| 5 |
2.571 |
4.032 |
6.859 |
25 |
2.060 |
2.787 |
3.725 |
| 6 |
2.447 |
3.707 |
5.959 |
26 |
2.056 |
2.779 |
3.707 |
| 7 |
2.365 |
3.499 |
5.405 |
27 |
2.052 |
2.771 |
3.690 |
| 8 |
2.306 |
3.355 |
5.041 |
28 |
2.048 |
2.763 |
3.674 |
| 9 |
2.262 |
3.250 |
4.781 |
29 |
2.045 |
2.756 |
3.659 |
| 10 |
2.228 |
3.169 |
4.587 |
30 |
2.042 |
2.750 |
3.646 |
| 11 |
2.201 |
3.106 |
4.437 |
40 |
2.021 |
2.704 |
3.551 |
| 12 |
2.179 |
3.055 |
4.318 |
50 |
2.008 |
2.678 |
3.496 |
| 13 |
2.160 |
3.012 |
4.221 |
60 |
2.000 |
2.660 |
3.460 |
| 14 |
2.145 |
2.977 |
4.140 |
70 |
1.994 |
2.648 |
3.435 |
| 15 |
2.131 |
2.947 |
4.073 |
80 |
1.989 |
2.638 |
3.416 |
| 16 |
2.120 |
2.921 |
4.015 |
90 |
1.986 |
2.631 |
3.402 |
| 17 |
2.110 |
2.898 |
3.965 |
100 |
1.982 |
2.625 |
3.390 |
| 18 |
2.101 |
2.878 |
3.922 |
120 |
1.980 |
2.617 |
3.373 |
| 19 |
2.093 |
2.861 |
3.883 |
500 |
1.965 |
2.586 |
3.305 |
| 20 |
2.086 |
2.845 |
3.850 |
∞ |
1.960 |
2.576 |
3.291 |
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