Kwantyle tα,n rozkładu t-Studenta, n – liczba stopni swobody
α
n
0,9
0,95
0,975
0,98
0,99
0,995
0,999
0,9995
1
3,0777
6,3138
12,7062
15,8945
31,8205
63,6568
318,3060
636,6270
2
1,8856
2,9200
4,3027
4,8487
6,9646
9,9248
22,3272
31,5990
3
1,6377
2,3534
3,1825
3,4819
4,5407
5,8409
10,2145
12,9240
4
1,5332
2,1319
2,7764
2,9985
3,7470
4,6041
7,1732
8,6103
5
1,4759
2,0151
2,5706
2,7565
3,3649
4,0321
5,8934
6,8688
6
1,4398
1,9432
2,4469
2,6122
3,1427
3,7074
5,2076
5,9588
7
1,4149
1,8946
2,3646
2,5168
2,9980
3,4995
4,7853
5,4079
8
1,3968
1,8596
2,3060
2,4490
2,8965
3,3554
4,5008
5,0413
9
1,3830
1,8331
2,2622
2,3984
2,8214
3,2498
4,2968
4,7809
10
1,3722
1,8125
2,2281
2,3593
2,7638
3,1693
4,1437
4,5869
11
1,3634
1,7959
2,2010
2,3281
2,7181
3,1058
4,0247
4,4370
12
1,3562
1,7823
2,1788
2,3027
2,6810
3,0545
3,9296
4,3178
13
1,3502
1,7709
2,1604
2,2816
2,6503
3,0123
3,8520
4,2208
14
1,3450
1,7613
2,1448
2,2638
2,6245
2,9768
3,7874
4,1405
15
1,3406
1,7531
2,1315
2,2485
2,6025
2,9467
3,7328
4,0728
16
1,3368
1,7459
2,1199
2,2354
2,5835
2,9208
3,6862
4,0150
17
1,3334
1,7396
2,1098
2,2239
2,5669
2,8982
3,6458
3,9651
18
1,3304
1,7341
2,1009
2,2137
2,5524