表A.6 皮尔逊相关的临界值

表B.6皮尔逊积差相关的临界值*

*样本相关系数r必须大于等于表中的临界值，才能得出显著的结论。

Table VI of R.A.Fisher and F.Yates,Statistical Tables for iological,Agricultural

and Medical Research,6th ed.London:Longman Group Ltd.,1974(previously

published by Oliver and Boyd Ltd.,Edinburgh).Adapted and reprinted with

permission of the Addison Wesley Longman Publishing Co.

相关系数临界值表

附表二：相关系数临界值表 （表中是自由度） n －2 0.10 0.05 0.02 0.01 0.001 n －2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 25 30 35 40 45 50 60 70 80 90 100 0.987 69 0.900 00 0.805 4 0.729 3 0.669 4 0.621 5 0.582 2 0.549 4 0.521 4 0.497 3 0.476 2 0.457 5 0.440 9 0.425 9 0.412 4 0.400 0 0.388 7 0.378 3 0.368 7 0.359 8 0.323 3 0.296 0 0.274 6 0.257 3 0.242 8 0.230 6 0.210 8 0.195 4 0.182 9 0.172 6 0.163 8 0.099 692 0.950 00 0.878 3 0.811 4 0.754 5 0.706 7 0.666 4 0.631 9 0.602 1 0.576 0 0.552 9 0.532 4 0.513 9 0.497 3 0.482 1 0.468 3 0.455 5 0.443 8 0.432 9 0.422 7 0.380 9 0.349 4 0.324 6 0.304 4 0.287 5 0.273 2 0.250 0 0.231 9 0.217 2 0.205 0 0.194 6 0.999 507 0.980 00 0.934 33 0.882 2 0.832 9 0.788 7 0.749 8 0.715 5 0.685 1 0.658 1 0.633 9 0.612 0 0.592 3 0.574 2 0.557 7 0.542 5 0.528 5 0.515 5 0.503 4 0.492 1 0.445 1 0.409 3 0.381 0 0.357 8 0.338 4 0.321 8 0.294 8 0.273 7 0.256 5 0.242 2 0.230 1 0.999 877 0.990 00 0.958 73 0.917 20 0.874 5 0.834 3 0.797 7 0.764 6 0.734 8 0.707 9 0.683 5 0.661 4 0.641 1 0.622 6 0.605 5 0.589 7 0.575 1 0.561 4 0.548 7 0.536 8 0.486 9 0.448 7 0.418 2 0.393 2 0.372 1 0.354 1 0.324 8 0.301 7 0.283 0 0.267 3 0.254 0 0.999 998 8 0.999 00 0.991 16 0.974 06 0.950 74 0.924 93 0.898 2 0.872 1 0.847 1 0.823 3 0.801 0 0.780 0 0.760 3 0.742 0 0.724 6 0.708 4 0.693 2 0.678 7 0.665 2 0.652 4 0.597 4 0.554 1 0.518 9 0.489 6 0.464 8 0.443 3 0.407 8 0.379 9 0.356 8 0.337 5 0.321 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 25 30 35 40 45 50 60 70 80 90 100

统计分布临界值表.pdf

统计分布临界值表 附录 附表一：随机数表___________________________________________________ 2附表二：标准正态分布表_____________________________________________ 3附表三：t分布临界值表_____________________________________________ 4附表四：2χ分布临界值表____________________________________________ 5附表五：F分布临界值表（α=0.05）__________________________________ 7附表六：单样本K-S检验统计量表_____________________________________ 9附表七：符号检验界域表____________________________________________ 10附表八：游程检验临界值表__________________________________________ 11附表九：相关系数临界值表__________________________________________ 12附表十：Spearman等级相关系数临界值表_____________________________ 13附表十一：Kendall等级相关系数临界值表____________________________ 14附表十二：控制图系数表____________________________________________ 15

统计临界值表

目录 附表一：随机数表 _________________________________________________________________________ 2附表二：标准正态分布表 ___________________________________________________________________ 3附表三：t分布临界值表____________________________________________________________________ 4 附表四： 2 分布临界值表 __________________________________________________________________ 5 附表五：F分布临界值表（α=0.05）________________________________________________________ 7附表六：单样本K-S检验统计量表___________________________________________________________ 9附表七：符号检验界域表 __________________________________________________________________ 10附表八：游程检验临界值表 _________________________________________________________________ 11附表九：相关系数临界值表 ________________________________________________________________ 12附表十：Spearman等级相关系数临界值表 ___________________________________________________ 13附表十一：Kendall等级相关系数临界值表 ___________________________________________________ 14附表十二：控制图系数表 __________________________________________________________________ 15

统计学附录F分布,t分布临界值表全.docx

统计学附录F—分布临界值表 ——α（ 0.005 ―0.10 ） α=0.005 Fα k112345681224∞k2 116211200002161522500230562343723925244262494025465 2198.5199.0199.2199.2199.3199.3199.4199.4199.5199.5 355.5549.8047.4746.1945.3944.8444.1343.3942.6241.83 431.3326.2824.2623.1522.4621.9721.3520.7020.0319.32 522.7818.3116.5315.5614.9414.5113.9613.3812.7812.14 618.6314.4512.9212.0311.4611.0710.5710.039.478.88 716.2412.4010.8810.059.529.168.688.187.657.08 814.6911.049.608.818.307.957.507.01 6.50 5.95 913.6110.118.727.967.477.13 6.69 6.23 5.73 5.19 1012.839.438.087.34 6.87 6.54 6.12 5.66 5.17 4.64 1112.238.917.60 6.88 6.42 6.10 5.68 5.24 4.76 4.23 1211.758.517.23 6.52 6.07 5.76 5.35 4.91 4.43 3.90 1311.378.19 6.93 6.23 5.79 5.48 5.08 4.64 4.17 3.65 1411.067.92 6.68 6.00 5.56 5.26 4.86 4.43 3.96 3.44 1510.807.70 6.48 5.80 5.37 5.07 4.67 4.25 3.79 3.26 1610.587.51 6.30 5.64 5.21 4.91 4.52 4.10 3.64 3.11 1710.387.35 6.16 5.50 5.07 4.78 4.39 3.97 3.51 2.98 1810.227.21 6.03 5.37 4.96 4.66 4.28 3.86 3.40 2.87 1910.077.09 5.92 5.27 4.85 4.56 4.18 3.76 3.31 2.78 209.94 6.99 5.82 5.17 4.76 4.47 4.09 3.68 3.22 2.69

相关系数检验表

自由度自由度n -m -10.10 0.05 0.01 n -m -10.10 0.05 0.01 10.987690.996920.999882010.018230.010910.0028820.900000.950000.990002020.050680.043320.0258130.805380.878340.958742030.068740.066150.0518940.729300.811400.917202040.079150.080690.0725350.669440.754490.874532050.085730.090380.0880760.621490.706730.834342060.090190.097180.0998670.582210.666380.797682070.093370.102170.1089880.549360.631900.764592080.095730.105950.1161890.521400.602070.734792090.097520.108880.12197100.497260.575980.707892100.098910.111200.12670110.476160.552940.683532110.100010.113070.13062120.457500.532410.661382120.100890.114600.13390130.440860.513980.641142130.101600.115860.13667140.425900.497310.622592140.102170.116900.13903150.412360.482150.605512150.102640.117770.14106160.400030.468280.589712160.103020.118500.14281170.388730.455530.575072170.103320.119110.14432180.378340.443760.561442180.103560.119620.14564190.368740.432860.548712190.103760.120060.14679200.359830.422710.536802200.103910.120420.14780210.351530.413250.525622210.104020.120720.14869220.343780.404390.515102220.104100.120970.14946230.336520.396070.505182230.104160.121170.15015240.329700.388240.495812240.104190.121340.15075250.323280.380860.486932250.104200.121470.15127260.317220.373890.478512260.104190.121570.15173270.311490.367280.470512270.104170.121640.15214280.306060.361010.462892280.104130.121690.15249290.300900.355050.455632290.104080.121720.15279300.295990.349370.448702300.104020.121730.15306310.291320.343960.442072310.103950.121730.15328320.286860.338790.435732320.103870.121700.15348330.282590.333840.429652330.103780.121670.15364340.278520.329110.423812340.103680.121620.15377350.274610.324570.418212350.103580.121560.15388360.270860.320220.412822360.103470.121490.15396370.267270.316030.407642370.103360.121410.15403380.263810.312010.402642380.103240.121320.15407390.260480.308130.397822390.103120.121220.15409400.257280.304400.393172400.103000.121120.15410410.254190.300790.388682410.102870.121010.1541042 0.251210.297320.38434242 0.102740.120900.15408 显著性水平(a ) 显著性水平(a ) 相关系数检验临界值表

附表3统计分布临界值表

附 录 附表一：随机数表_________________________________________________________________________2 附表二：标准正态分布表___________________________________________________________________3 附表三：t 分布临界值表____________________________________________________________________4 附表四：分布临界值表__________________________________________________________________5 2χ附表五：F 分布临界值表（α=0.05）_________________________________________________________7 附表六：单样本K-S 检验统计量表____________________________________________________________9 附表七：符号检验界域表__________________________________________________________________10 附表八：游程检验临界值表_________________________________________________________________11 附表九：相关系数临界值表________________________________________________________________12 附表十：Spearman 等级相关系数临界值表___________________________________________________13 附表十一：Kendall τ等级相关系数临界值表__________________________________________________14 附表十二：控制图系数表__________________________________________________________________15 附表十三 威尔克逊秩和检验临界表（01.0＝α）____________________________________________16 附表十四 威尔克逊秩和检验临界表（025.0＝α）___________________________________________17 附表十五 威尔克逊秩和检验临界表（05.0＝α）____________________________________________18 附表十六 威尔克逊符号秩和检验临界表____________________________________________________19 附表十七 Durbin Watson 序列相关检验表(05.0=α)_________________________________________20

T检验临界值表

自由度自由度（df ）0.100.05 0.01 （df ）0.100.05 0.01 n -m -1n -m -11 6.31412.70663.657301 1.650 1.968 2.5922 2.920 4.3039.925302 1.650 1.968 2.5923 2.353 3.182 5.841303 1.650 1.968 2.5924 2.132 2.776 4.604304 1.650 1.968 2.5925 2.015 2.571 4.032305 1.650 1.968 2.5926 1.943 2.447 3.707306 1.650 1.968 2.5927 1.895 2.365 3.499307 1.650 1.968 2.5928 1.860 2.306 3.355308 1.650 1.968 2.5929 1.833 2.262 3.250309 1.650 1.968 2.59210 1.812 2.228 3.169310 1.650 1.968 2.59211 1.796 2.201 3.106311 1.650 1.968 2.59212 1.782 2.179 3.055312 1.650 1.968 2.59213 1.771 2.160 3.012313 1.650 1.968 2.59214 1.761 2.145 2.977314 1.650 1.968 2.59215 1.753 2.131 2.947315 1.650 1.968 2.59216 1.746 2.120 2.921316 1.650 1.967 2.59117 1.740 2.110 2.898317 1.650 1.967 2.59118 1.734 2.101 2.878318 1.650 1.967 2.59119 1.729 2.093 2.861319 1.650 1.967 2.59120 1.725 2.086 2.845320 1.650 1.967 2.59121 1.721 2.080 2.831321 1.650 1.967 2.59122 1.717 2.074 2.819322 1.650 1.967 2.59123 1.714 2.069 2.807323 1.650 1.967 2.59124 1.711 2.064 2.797324 1.650 1.967 2.59125 1.708 2.060 2.787325 1.650 1.967 2.59126 1.706 2.056 2.779326 1.650 1.967 2.59127 1.703 2.052 2.771327 1.650 1.967 2.59128 1.701 2.048 2.763328 1.650 1.967 2.59129 1.699 2.045 2.756329 1.649 1.967 2.59130 1.697 2.042 2.750330 1.649 1.967 2.59131 1.696 2.040 2.744331 1.649 1.967 2.59132 1.694 2.037 2.738332 1.649 1.967 2.59133 1.692 2.035 2.733333 1.649 1.967 2.59134 1.691 2.032 2.728334 1.649 1.967 2.59135 1.690 2.030 2.724335 1.649 1.967 2.59136 1.688 2.028 2.719336 1.649 1.967 2.59137 1.687 2.026 2.715337 1.649 1.967 2.59038 1.686 2.024 2.712338 1.649 1.967 2.59039 1.685 2.023 2.708339 1.649 1.967 2.59040 1.684 2.021 2.704340 1.649 1.967 2.59041 1.683 2.020 2.701341 1.649 1.967 2.59042 1.682 2.018 2.698342 1.649 1.967 2.59043 1.681 2.017 2.695343 1.649 1.967 2.59044 1.680 2.015 2.692 344 1.649 1.967 2.590 显著性水平（a ）显著性水平（a ）T 检验临界值表

统计分布临界值表

附录 附表一：随机数表 _________________________________________________________________________ 2附表二：标准正态分布表 ___________________________________________________________________ 3附表三：t分布临界值表____________________________________________________________________ 4 附表四： 2 分布临界值表 __________________________________________________________________ 5 附表五：F分布临界值表（α=0.05）________________________________________________________ 7附表六：单样本K-S检验统计量表___________________________________________________________ 9附表七：符号检验界域表 __________________________________________________________________ 10附表八：游程检验临界值表 _________________________________________________________________ 11附表九：相关系数临界值表 ________________________________________________________________ 12附表十：Spearman等级相关系数临界值表 ___________________________________________________ 13附表十一：Kendall等级相关系数临界值表 ___________________________________________________ 14附表十二：控制图系数表 __________________________________________________________________ 15

统计分布临界值表

附表一：随机数表_____________________________________________________________________________ 2附表二：标准正态分布表______________________________________________________________________ 3附表三：t分布临界值表________________________________________________________________________ 4 2 附表四：分布临界值表_____________________________________________________________________ 5附表五：F分布临界值表（a =0.05）7附表六：单样本K-S检验统计量表_______________________________________________________________ 9附表七：符号检验界域表______________________________________________________________________ 10附表八：游程检验临界值表___________________________________________________________________ 11附表九：相关系数临界值表____________________________________________________________________ 12附表十：Spearman等级相关系数临界值表 _____________________________________________________ 13附表十一：Kendall等级相关系数临界值表_______________________________________________________ 14附表十二：控制图系数表_____________________________________________________________________ 15

t分布临界值表(3)

t分布临界值表 Y 单侧tf-0.10 0.05 0.025 0.01 0.005 ^*020 0.10 0.W 0.Q2 0.01 ￥?1 3.078 6314 12.706 3⑷I 63437 2l.就6 2.920 ~ ^.SOJ 6.W5 9.925 3 1.63S2333 lltt 4J4I 5.S41 4g 2.13： 5.776 1747 4.604 5 L47 6 2.01$ 2.571 3.3?<032 ?1,440]w 2.447 1143 3.707 1 1.41$I,*452,365 2.99S 3咖 8 1397】.M0 2JQ6 2.S96 2.35$ 9 IJ83 1.833 2.2*2 XR3I 5J50 10 1.372 1812 2.228 2764 3 I&9 11 1.363 1,7% 2 2Q1 2.718 3.106 12 L556 1179 2.6S1 3,055 13 1.350 1.77t2J602650 3012 14 l.MS 1.761 2.145 2.624 2.^77 15 1341 k753 2431 2 602 2弼7 16 1.337 1.746 2.120 25*3 2.921 17 133) 1.740 2.1)0 2.567zm IK L3J0L7J4 2401 2^52 2.87S \9|.52? 1.729 2,093 2.539 2.861 2D 1325 J.725 2.OS6 2.S28 2.S45 21 1323 \31\ 2.080 2.51S 2妙 22132! \m 2.074 2.508 1819 2313191JI4 2.069 2.500 2 807 24⑶g L7LL 2064 2.4922,797 25 1316 IM 2.060 2.4H5 2.787 26IJ15 1.7师 2.056 2櫛 2.779 27IJH l.?032,052 2.475 2.77) 2?1313 L701 2.048 2.467 2.763 291311 i.699 2(M5 2.462 2.?56 301310 i 69? 2,042 2.457 2.750 401J03 I￡S4 2.021 2.423 2.704 50 1.299 1.676 2.009 2 403 2.678 60 1.2^ 1.671 2.000 2J90 2.660 70 1.294 1.W7 1.9W 伽 2.64& 80 1.202 1.990 2.374 2.639 901291h662 1.487 2368 "32 100 1290 1.660 i.QM 2364 2.626 125I.2S8 1 657 I.W 235? 2.616 ISO 1 2M7 1 655k?76 2351 2.609 200 I.2B6 1653 L972 2.345 2.601 8I.2K：I.M5I960 1326 2.576

(完整版)相关系数临界值表

附表7. 相关系数临界值表 （表中是自由度） n－20.100.050.020.010.001 n－2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0.987 69 0.900 00 0.805 4 0.729 3 0.669 4 0.621 5 0.582 2 0.549 4 0.521 4 0.497 3 0.476 2 0.457 5 0.440 9 0.425 9 0.412 4 0.400 0 0.099 692 0.950 00 0.878 3 0.811 4 0.754 5 0.706 7 0.666 4 0.631 9 0.602 1 0.576 0 0.552 9 0.532 4 0.513 9 0.497 3 0.482 1 0.468 3 0.999 507 0.980 00 0.934 33 0.882 2 0.832 9 0.788 7 0.749 8 0.715 5 0.685 1 0.658 1 0.633 9 0.612 0 0.592 3 0.574 2 0.557 7 0.542 5 0.999 877 0.990 00 0.958 73 0.917 20 0.874 5 0.834 3 0.797 7 0.764 6 0.734 8 0.707 9 0.683 5 0.661 4 0.641 1 0.622 6 0.605 5 0.589 7 0.999 998 8 0.999 00 0.991 16 0.974 06 0.950 74 0.924 93 0.898 2 0.872 1 0.847 1 0.823 3 0.801 0 0.780 0 0.760 3 0.742 0 0.724 6 0.708 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

T分布临界值表 (2)

T分布表 Df 自由度 P 概率0.1 0.05 0.025 0.01 0.005 0.001 0.0005 单尾0.2 0.1 0.05 0.02 0.01 0.002 0.001 双尾 1 3.078 6.314 12.706 31.821 63.657 318.309 636.619 2 1.886 2.920 4.30 3 6.965 9.925 22.327 31.599 3 1.638 2.353 3.182 4.541 5.841 10.215 12.924 4 1.533 2.132 2.776 3.747 4.604 7.173 8.610 5 1.47 6 2.015 2.571 3.365 4.032 5.893 6.869 6 1.440 1.943 2.44 7 3.143 3.707 5.20 8 5.959 7 1.415 1.895 2.365 2.998 3.499 4.785 5.408 8 1.397 1.860 2.306 2.896 3.355 4.501 5.041 9 1.383 1.833 2.262 2.821 3.250 4.297 4.781 10 1.372 1.812 2.228 2.764 3.169 4.144 4.587 11 1.363 1.796 2.201 2.718 3.106 4.025 4.437 12 1.356 1.782 2.179 2.681 3.055 3.930 4.318 13 1.350 1.771 2.160 2.650 3.012 3.852 4.221 14 1.345 1.761 2.145 2.624 2.977 3.787 4.140 15 1.341 1.753 2.131 2.602 2.947 3.733 4.073 16 1.337 1.746 2.120 2.583 2.921 3.686 4.015 17 1.333 1.740 2.110 2.567 2.898 3.646 3.965 18 1.330 1.734 2.101 2.552 2.878 3.610 3.922 19 1.328 1.729 2.093 2.539 2.861 3.579 3.883 20 1.325 1.725 2.086 2.528 2.845 3.552 3.850 21 1.323 1.721 2.080 2.518 2.831 3.527 3.819 22 1.321 1.717 2.074 2.508 2.819 3.505 3.792 23 1.319 1.714 2.069 2.500 2.807 3.485 3.768 24 1.318 1.711 2.064 2.492 2.797 3.467 3.745 25 1.316 1.708 2.060 2.485 2.787 3.450 3.725 26 1.315 1.706 2.056 2.479 2.779 3.435 3.707 27 1.314 1.703 2.052 2.473 2.771 3.421 3.690 28 1.313 1.701 2.048 2.467 2.763 3.408 3.674 29 1.311 1.699 2.045 2.462 2.756 3.396 3.659 30 1.310 1.697 2.042 2.457 2.750 3.385 3.646 31 1.309 1.696 2.040 2.453 2.744 3.375 3.633 32 1.309 1.694 2.037 2.449 2.738 3.365 3.622 33 1.308 1.692 2.035 2.445 2.733 3.356 3.611

完整版相关系数临界值表

附表7.相关系数临界值表 （表中n-2是自由度） n — 2 0.10 0.05 0.02 0.01 1 0.001 a n — 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0.987 69 0.900 00 0.805 4 0.729 3 0.669 4 0.621 5 0.582 2 0.549 4 0.521 4 0.497 3 0.476 2 0.457 5 0.440 9 0.425 9 0.412 4 0.400 0 0.099 692 0.950 00 0.878 3 0.811 4 0.754 5 0.706 7 0.666 4 0.631 9 0.602 1 0.576 0 0.552 9 0.532 4 0.513 9 0.497 3 0.482 1 0.468 3 0.999 507 0.980 00 0.934 33 0.882 2 0.832 9 0.788 7 0.749 8 0.715 5 0.685 1 0.658 1 0.633 9 0.612 0 0.592 3 0.574 2 0.557 7 0.542 5 0.999 877 0.990 00 0.958 73 0.917 20 0.874 5 0.834 3 0.797 7 0.764 6 0.734 8 0.707 9 0.683 5 0.661 4 0.641 1 0.622 6 0.605 5 0.589 7 0.999 998 8 0.999 00 0.991 16 0.974 06 0.950 74 0.924 93 0.898 2 0.872 1 0.847 1 0.823 3 0.801 0 0.780 0 0.760 3 0.742 0 0.724 6 0.708 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

t-分布临界值表

t -分布临界值表 ()(){}1P t n t n αα?=> n α=0.25 0.10 0.05 0.025 0.01 0.005 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1.0000 0.8165 0.7649 0.7407 0.7267 0.7176 0.7111 0.7064 0.7027 0.6998 0.6974 0.6955 0.6938 0.6924 0.6912 0.6901 0.6892 0.6884 0.6876 0.6870 0.6864 0.6858 0.6853 0.6848 0.6844 0.6840 0.6837 0.6834 0.6830 0.6828 3.0777 1.8856 1.6377 1.5332 1.4759 1.4398 1.4149 1.3968 1.3830 1.3722 1.3634 1.3562 1.3502 1.3450 1.3406 1.3368 1.3334 1.3304 1.3277 1.3253 1.3232 1.3212 1.3195 1.3178 1.3163 1.3150 1.3137 1.3125 1.3114 1.3104 6.3138 2.9200 2.3534 2.1318 2.0150 1.9432 1.8946 1.8595 1.8331 1.8125 1.7959 1.7823 1.7709 1.7613 1.7531 1.7459 1.7396 1.7341 1.7291 1.7247 1.7207 1.7171 1.7139 1.7109 1.7081 1.7056 1.7033 1.7011 1.6991 1.6973 12.7062 4.3207 3.1824 2.7764 2.5706 2.4469 2.3646 2.3060 2.2622 2.2281 2.2010 2.1788 2.1604 2.1448 2.1315 2.1199 2.1098 2.1009 2.0930 2.0860 2.0796 2.0739 2.0687 2.0639 2.0595 2.0555 2.0518 2.0484 2.0452 2.0423 31.8207 6.9646 4.5407 3.7469 3.3649 3.1427 2.9980 2.8965 2.8214 2.7638 2.7181 2.6810 2.6503 2.6245 2.6025 2.5835 2.5669 2.5524 2.5395 2.5280 2.5177 2.5083 2.4999 2.4922 2.4851 2.4786 2.4727 2.4671 2.4620 2.4573 63.6574 9.9248 5.8409 4.6041 4.0322 3.7074 3.4995 3.3554 3.2498 3.1693 3.1058 3.0545 3.0123 2.9768 2.9467 2.9028 2.8982 2.8784 2.8609 2.8453 2.8314 2.8188 2.8073 2.7969 2.7874 2.7787 2.7707 2.7633 2.7564 2.7500

T分布临界值表

T分布表 Df 自由度P 概率0.1 0.05 0.025 0.01 0.005 0.001 0.0005 单尾0.2 0.1 0.05 0.02 0.01 0.002 0.001 双尾 1 3.078 6.314 12.706 31.821 63.657 318.309 636.619 2 1.886 2.920 4.30 3 6.965 9.925 22.327 31.599 3 1.638 2.353 3.182 4.541 5.841 10.215 12.924 4 1.533 2.132 2.776 3.747 4.604 7.173 8.610 5 1.47 6 2.015 2.571 3.365 4.032 5.893 6.869 6 1.440 1.943 2.44 7 3.143 3.707 5.20 8 5.959 7 1.415 1.895 2.365 2.998 3.499 4.785 5.408 8 1.397 1.860 2.306 2.896 3.355 4.501 5.041 9 1.383 1.833 2.262 2.821 3.250 4.297 4.781 10 1.372 1.812 2.228 2.764 3.169 4.144 4.587 11 1.363 1.796 2.201 2.718 3.106 4.025 4.437 12 1.356 1.782 2.179 2.681 3.055 3.930 4.318 13 1.350 1.771 2.160 2.650 3.012 3.852 4.221 14 1.345 1.761 2.145 2.624 2.977 3.787 4.140 15 1.341 1.753 2.131 2.602 2.947 3.733 4.073 16 1.337 1.746 2.120 2.583 2.921 3.686 4.015