■付表 t 分布表 Student's t distribution

両側確率 P (=有意水準) と 自由度 f を表の上と左の見出しから拾い, t 値を読み取る.
主な表計算ソフトでは,関数 TINV( 両側確率 P , 自由度 f ) がこの表と同様の役割をもつ.
Student's t distribution     Student's t distribution

t 分布表
degrees of
freedom
f
two tails probability P
0.1 0.05 0.02 0.01 0.001
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

31
32
33
34
35
36
37
38
39
40

41
42
43
44
45
46
47
48
49
50
6.313752
2.919986
2.353363
2.131847
2.015048
1.943180
1.894579
1.859548
1.833113
1.812461

1.795885
1.782288
1.770933
1.761310
1.753050
1.745884
1.739607
1.734064
1.729133
1.724718

1.720743
1.717144
1.713872
1.710882
1.708141
1.705618
1.703288
1.701131
1.699127
1.697261

1.695519
1.693889
1.692360
1.690924
1.689572
1.688298
1.687094
1.685954
1.684875
1.683851

1.682878
1.681952
1.681071
1.680230
1.679427
1.678660
1.677927
1.677224
1.676551
1.675905
12.70620
4.302653
3.182446
2.776445
2.570582
2.446912
2.364624
2.306004
2.262157
2.228139

2.200985
2.178813
2.160369
2.144787
2.131450
2.119905
2.109816
2.100922
2.093024
2.085963

2.079614
2.073873
2.068658
2.063899
2.059539
2.055529
2.051831
2.048407
2.045230
2.042272

2.039513
2.036933
2.034515
2.032245
2.030108
2.028094
2.026192
2.024394
2.022691
2.021075

2.019541
2.018082
2.016692
2.015368
2.014103
2.012896
2.011741
2.010635
2.009575
2.008559
31.82052
6.964557
4.540703
3.746947
3.364930
3.142668
2.997952
2.896459
2.821438
2.763769

2.718079
2.680998
2.650309
2.624494
2.602480
2.583487
2.566934
2.552380
2.539483
2.527977

2.517648
2.508325
2.499867
2.492159
2.485107
2.478630
2.472660
2.467140
2.462021
2.457262

2.452824
2.448678
2.444794
2.441150
2.437723
2.434494
2.431447
2.428568
2.425841
2.423257

2.420803
2.418470
2.416250
2.414134
2.412116
2.410188
2.408345
2.406581
2.404892
2.403272
63.65674
9.924843
5.840909
4.604095
4.032143
3.707428
3.499483
3.355387
3.249836
3.169273

3.105807
3.054540
3.012276
2.976843
2.946713
2.920782
2.898231
2.878440
2.860935
2.845340

2.831360
2.818756
2.807336
2.796940
2.787436
2.778715
2.770683
2.763262
2.756386
2.749996

2.744042
2.738481
2.733277
2.728394
2.723806
2.719485
2.715409
2.711558
2.707913
2.704459

2.701181
2.698066
2.695102
2.692278
2.689585
2.687013
2.684556
2.682204
2.679952
2.677793
636.6192
31.59905
12.92398
8.610302
6.868827
5.958816
5.407883
5.041305
4.780913
4.586894

4.436979
4.317791
4.220832
4.140454
4.072765
4.014996
3.965126
3.921646
3.883406
3.849516

3.819277
3.792131
3.767627
3.745399
3.725144
3.706612
3.689592
3.673906
3.659405
3.645959

3.633456
3.621802
3.610913
3.600716
3.591147
3.582150
3.573675
3.565678
3.558120
3.550966

3.544184
3.537745
3.531626
3.525801
3.520251
3.514957
3.509901
3.505068
3.500443
3.496013
two tails 0.1 0.05 0.02 0.01 0.001
one tail 0.05 0.025 0.01 0.005 0.0005
degrees of
freedom
f
two tails probability P
0.1 0.05 0.02 0.01 0.001
51
52
53
54
55
56
57
58
59
60

61
62
63
64
65
66
67
68
69
70

72
74
76
78
80
85
90
95
100
110

120
130
140
150
160
170
180
200
250
300

400
500
1000
5000
10000
50000
100000
500000
1000000
1.675285
1.674689
1.674116
1.673565
1.673034
1.672522
1.672029
1.671553
1.671093
1.670649

1.670219
1.669804
1.669402
1.669013
1.668636
1.668271
1.667916
1.667572
1.667239
1.666914

1.666294
1.665707
1.665151
1.664625
1.664125
1.662978
1.661961
1.661052
1.660234
1.658824

1.657651
1.656659
1.655811
1.655076
1.654433
1.653866
1.653363
1.652508
1.650971
1.649949

1.648672
1.647907
1.646379
1.645158
1.645006
1.644884
1.644869
1.644857
1.644855
1.644854
2.007584
2.006647
2.005746
2.004879
2.004045
2.003241
2.002465
2.001717
2.000995
2.000298

1.999624
1.998972
1.998341
1.997730
1.997138
1.996564
1.996008
1.995469
1.994945
1.994437

1.993464
1.992543
1.991673
1.990847
1.990063
1.988268
1.986675
1.985251
1.983972
1.981765

1.979930
1.978380
1.977054
1.975905
1.974902
1.974017
1.973231
1.971896
1.969498
1.967903

1.965912
1.964720
1.962339
1.960439
1.960201
1.960011
1.959988
1.959969
1.959966
1.959964
2.401718
2.400225
2.398790
2.397410
2.396081
2.394801
2.393568
2.392377
2.391229
2.390119

2.389047
2.388011
2.387008
2.386037
2.385097
2.384186
2.383302
2.382446
2.381615
2.380807

2.379262
2.377802
2.376420
2.375111
2.373868
2.371022
2.368497
2.366243
2.364217
2.360726

2.357825
2.355375
2.353278
2.351465
2.349880
2.348483
2.347243
2.345137
2.341356
2.338842

2.335706
2.333829
2.330083
2.327094
2.326721
2.326422
2.326385
2.326355
2.326352
2.326348
2.675722
2.673734
2.671823
2.669985
2.668216
2.666512
2.664870
2.663287
2.661759
2.660283

2.658857
2.657479
2.656145
2.654854
2.653604
2.652394
2.651220
2.650081
2.648977
2.647905

2.645852
2.643913
2.642078
2.640340
2.638691
2.634914
2.631565
2.628576
2.625891
2.621265

2.617421
2.614177
2.611403
2.609003
2.606906
2.605058
2.603418
2.600634
2.595638
2.592316

2.588176
2.585698
2.580755
2.576813
2.576321
2.575928
2.575878
2.575839
2.575834
2.575829
3.491766
3.487691
3.483777
3.480016
3.476398
3.472916
3.469562
3.466329
3.463210
3.460200

3.457294
3.454485
3.451769
3.449142
3.446598
3.444135
3.441749
3.439435
3.437192
3.435015

3.430848
3.426916
3.423197
3.419676
3.416337
3.408699
3.401935
3.395904
3.390491
3.381179

3.373454
3.366942
3.361378
3.356569
3.352371
3.348676
3.345397
3.339835
3.329867
3.323252

3.315015
3.310091
3.300283
3.292474
3.291500
3.290721
3.290624
3.290546
3.290536
3.290527
two tails 0.1 0.05 0.02 0.01 0.001
one tail 0.05 0.025 0.01 0.005 0.0005


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