Misalkan derajat bebas adalah v, dimana v = n-1, dan dengan tingkat siknifikan maka luas daerah di bawah kurva distribusi t adalah seperti tabel di bawah ini.
Tabel di bawah hanya digunakan jika n kecil atau sama dengan 30. Jika n besar dari 30 maka tabel distribusi yang digunakan adalah tabel distribusi normal (tabel z).
Nilai Kritis Distribusi Student-t
|
v
|
 |
||||
|
0,10
|
0,05
|
0,025
|
0,01
|
0.005
|
|
|
1
|
3,078
|
6,314
|
12,706
|
31,821
|
63,657
|
|
2
|
1,886
|
2,920
|
4,303
|
6,965
|
9,925
|
|
3
|
1,638
|
2,353
|
3,182
|
4,541
|
5,841
|
|
4
|
1,533
|
2,132
|
2,776
|
3,747
|
4,604
|
|
5
|
1,476
|
2,015
|
2,571
|
3,365
|
4,032
|
|
6
|
1,440
|
1,943
|
2,447
|
3,143
|
3,707
|
|
7
|
1,415
|
1,895
|
2,365
|
2,998
|
3,499
|
|
8
|
1,397
|
1,860
|
2,306
|
2,896
|
3,355
|
|
9
|
1,383
|
1,833
|
2,262
|
2,821
|
3,250
|
|
10
|
1,372
|
1,812
|
2,228
|
2,764
|
3,169
|
|
11
|
1,363
|
1,796
|
2,201
|
2,718
|
3,106
|
|
12
|
1,356
|
1,782
|
2,179
|
2,681
|
3,055
|
|
13
|
1,350
|
1,771
|
2,160
|
2,650
|
3,012
|
|
14
|
1,345
|
1,761
|
2,145
|
2,624
|
2,977
|
|
15
|
1,341
|
1,753
|
2,131
|
2,602
|
2,947
|
|
16
|
1,337
|
1,746
|
2,120
|
2,583
|
2,921
|
|
17
|
1,333
|
1,740
|
2,110
|
2,567
|
2,898
|
|
18
|
1,330
|
1,734
|
2,101
|
2,552
|
2,878
|
|
19
|
1,328
|
1,729
|
2,093
|
2,539
|
2,861
|
|
20
|
1,325
|
1,725
|
2,086
|
2,528
|
2,845
|
|
21
|
1,323
|
1,721
|
2,080
|
2,518
|
2,831
|
|
22
|
1,321
|
1,717
|
2,074
|
2,508
|
2,819
|
|
23
|
1,319
|
1,714
|
2,069
|
2,500
|
2,807
|
|
24
|
1,318
|
1,711
|
2,064
|
2,492
|
2,797
|
|
25
|
1,316
|
1,708
|
2,060
|
2,485
|
2,787
|
|
26
|
1,315
|
1,706
|
2,056
|
2,479
|
2,779
|
|
27
|
1,314
|
1,703
|
2,052
|
2,473
|
2,771
|
|
28
|
1,313
|
1,701
|
2,048
|
2,267
|
2,763
|
|
29
|
1,311
|
1,699
|
2,045
|
2,462
|
2,756
|
|
inf
|
1,282
|
1,645
|
1,960
|
2,326
|
2,576
|
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