T-Statistics Reference Table - Upper Tailed Test - alpha = Area under the curve for upper tail.

For Sample Size of n > 29 Use Normal Table

 
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Student t Distribution - Values of t(alpha) for upper-tail area, alpha
Upper tail Area, aplha
df 0.4 0.25 0.1 0.05 0.025 0.01 0.005 0.0025 0.001 0.0005 df
1 0.324919 1.000001 3.077685 6.313749 12.70615 31.82096 63.6559 127.3211 318.2888 636.5776 1
2 0.288675 0.816497 1.885619 2.919987 4.302656 6.964547 9.924988 14.08916 22.32846 31.59977 2
3 0.276671 0.764892 1.637745 2.353363 3.182449 4.540707 5.840848 7.4532 10.21428 12.92443 3
4 0.270722 0.740697 1.533206 2.131846 2.776451 3.746936 4.60408 5.59754 7.17293 8.610077 4
5 0.267181 0.726687 1.475885 2.015049 2.570578 3.36493 4.032117 4.773319 5.893526 6.868504 5
6 0.264835 0.717558 1.439755 1.943181 2.446914 3.142668 3.707428 4.316826 5.207548 5.958718 6
7 0.263167 0.711142 1.414924 1.894578 2.364623 2.997949 3.499481 4.029353 4.785252 5.408074 7
8 0.261921 0.706386 1.396816 1.859548 2.306006 2.896468 3.355381 3.832538 4.500762 5.041366 8
9 0.260956 0.702722 1.383029 1.833114 2.262159 2.821434 3.249843 3.689638 4.29689 4.780886 9
10 0.260185 0.699812 1.372184 1.812462 2.228139 2.763772 3.169262 3.581372 4.143658 4.586764 10
11 0.259556 0.697445 1.36343 1.795884 2.200986 2.718079 3.105815 3.496607 4.024769 4.436879 11
12 0.259033 0.695483 1.356218 1.782287 2.178813 2.68099 3.054538 3.428431 3.929599 4.317844 12
13 0.258591 0.69383 1.350172 1.770932 2.160368 2.650304 3.012283 3.372479 3.852037 4.220929 13
14 0.258212 0.692417 1.345031 1.761309 2.144789 2.624492 2.976849 3.325695 3.787427 4.140311 14
15 0.257885 0.691197 1.340605 1.753051 2.131451 2.602483 2.946726 3.286041 3.732857 4.07279 15
16 0.257599 0.690133 1.336757 1.745884 2.119905 2.583492 2.920788 3.251989 3.686146 4.014873 16
17 0.257347 0.689195 1.333379 1.739606 2.109819 2.56694 2.898232 3.222449 3.645764 3.965106 17
18 0.257123 0.688364 1.330391 1.734063 2.100924 2.552379 2.878442 3.196583 3.610476 3.921741 18
19 0.256923 0.687621 1.327728 1.729131 2.093025 2.539482 2.860943 3.1737 3.579335 3.883324 19
20 0.256742 0.686954 1.325341 1.724718 2.085962 2.527977 2.845336 3.1534 3.551831 3.849564 20
21 0.25658 0.686352 1.323187 1.720744 2.079614 2.517645 2.831366 3.13521 3.527093 3.819296 21
22 0.256432 0.685805 1.321237 1.717144 2.073875 2.508323 2.818761 3.118839 3.504974 3.792229 22
df 0.4 0.25 0.1 0.05 0.025 0.01 0.005 0.0025 0.001 0.0005 df
23 0.256297 0.685307 1.319461 1.71387 2.068655 2.499874 2.807337 3.103996 3.484965 3.767636 23
24 0.256173 0.68485 1.317835 1.710882 2.063898 2.492161 2.796951 3.090536 3.466776 3.745372 24
24 0.256173 0.68485 1.317835 1.710882 2.063898 2.492161 2.796951 3.090536 3.466776 3.745372 24
25 0.25606 0.68443 1.316346 1.70814 2.059537 2.485103 2.787438 3.078203 3.450186 3.725145 25
26 0.255955 0.684043 1.314972 1.705616 2.055531 2.478628 2.778725 3.066889 3.43498 3.706664 26
27 0.255858 0.683685 1.313704 1.703288 2.051829 2.472661 2.770685 3.056521 3.42101 3.689493 27
29 0.255684 0.683044 1.311435 1.699127 2.045231 2.46202 2.756387 3.03804 3.396271 3.659516 29
29 0.255684 0.683044 1.311435 1.699127 2.045231 2.46202 2.756387 3.03804 3.396271 3.659516 29
30 0.255606 0.682755 1.310416 1.69726 2.04227 2.457264 2.749985 3.029782 3.385212 3.645982 30
40 0.255039 0.680673 1.303076 1.683852 2.021075 2.423258 2.704455 2.971174 3.306923 3.550958 40
50 0.254699 0.679428 1.298713 1.675905 2.00856 2.403267 2.677789 2.936977 3.261375 3.495952 50
60 0.254473 0.678601 1.295821 1.670649 2.000297 2.390116 2.660272 2.914567 3.231689 3.460154 60
70 0.254312 0.678011 1.293763 1.666915 1.994435 2.380802 2.647903 2.898742 3.210807 3.43498 70
80 0.254191 0.677569 1.292224 1.664125 1.990065 2.373872 2.638699 2.886954 3.195237 3.416353 80
90 0.254097 0.677226 1.291029 1.661961 1.986673 2.368497 2.631568 2.877896 3.183231 3.401947 90
100 0.254022 0.676951 1.290075 1.660235 1.983972 2.364213 2.625893 2.870656 3.173773 3.390451 100
110 0.25396 0.676727 1.289295 1.658823 1.981766 2.360721 2.621273 2.864763 3.165987 3.381138 110
120 0.253909 0.67654 1.288646 1.65765 1.979929 2.357829 2.617417 2.859852 3.159512 3.373425 120
200 0.253684 0.675718 1.285798 1.652509 1.971894 2.345132 2.600627 2.838497 3.131499 3.33981 200
df 0.4 0.25 0.1 0.05 0.025 0.01 0.005 0.0025 0.001 0.0005 df