Valor Crítico de la T de Estudiante



 

Appendix C
Critical Values of t

The values appearing on this page have been calculated via the built-in proprietary functions of Microsoft Excel.

Click one of the following links to go to the desired location within the table: df =
1-10, 11-20, 21-30, 31-40, 41-50, 51-60, 61-70, 71-85, >85

[At any place in the table, click "Top" to return to this location.]

Level of Significance for a Directional Test

0.05
0.025
0.01
0.005
0.0005

Level of Significance for a Non-directional Test
df
-
0.05
0.02
0.01
0.001
1
6.31
12.71
31.82
63.66
636.58
2
2.92
4.30
6.96
9.92
31.60
3
2.35
3.18
4.54
5.84
12.92
4
2.13
2.78
3.75
4.60
8.61
5
2.02
2.57
3.36
4.03
6.87
6
1.94
2.45
3.14
3.71
5.96
7
1.89
2.36
3.00
3.50
5.41
8
1.86
2.31
2.90
3.36
5.04
9
1.83
2.26
2.82
3.25
4.78
10
1.81
2.23
2.76
3.17
4.59

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Level of Significance for a Directional Test

0.05
0.025
0.01
0.005
0.0005

Level of Significance for a Non-directional Test
df
0.10
0.05
0.02
0.01
0.001
11
1.80
2.20
2.72
3.11
4.44
12
1.78
2.18
2.68
3.05
4.32
13
1.77
2.16
2.65
3.01
4.22
14
1.76
2.14
2.62
2.98
4.14
15
1.75
2.13
2.60
2.95
4.07
16
1.75
2.12
2.58
2.92
4.01
17
1.74
2.11
2.57
2.90
3.97
18
1.73
2.10
2.55
2.88
3.92
19
1.73
2.09
2.54
2.86
3.88
20
1.72
2.09
2.53
2.85
3.85

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Level of Significance for a Directional Test

0.05
0.025
0.01
0.005
0.0005

Level of Significance for a Non-directional Test
df
0.10
0.05
0.02
0.01
0.001
21
1.72
2.08
2.52
2.83
3.82
22
1.72
2.07
2.51
2.82
3.79
23
1.71
2.07
2.50
2.81
3.77
24
1.71
2.06
2.49
2.80
3.75
25
1.71
2.06
2.49
2.79
3.73
26
1.71
2.06
2.48
2.78
3.71
27
1.70
2.05
2.47
2.77
3.69
28
1.70
2.05
2.47
2.76
3.67
29
1.70
2.05
2.46
2.76
3.66
30
1.70
2.04
2.46
2.75
3.65

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Level of Significance for a Directional Test

0.05
0.025
0.01
0.005
0.0005

Level of Significance for a Non-directional Test
df
0.10
0.05
0.02
0.01
0.001
31
1.70
2.04
2.45
2.74
3.63
32
1.69
2.04
2.45
2.74
3.62
33
1.69
2.03
2.44
2.73
3.61
34
1.69
2.03
2.44
2.73
3.60
35
1.69
2.03
2.44
2.72
3.59
36
1.69
2.03
2.43
2.72
3.58
37
1.69
2.03
2.43
2.72
3.57
38
1.69
2.02
2.43
2.71
3.57
39
1.68
2.02
2.43
2.71
3.56
40
1.68
2.02
2.42
2.70
3.55

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Level of Significance for a Directional Test

0.05
0.025
0.01
0.005
0.0005

Level of Significance for a Non-directional Test
df
0.10
0.05
0.02
0.01
0.001
41
1.68
2.02
2.42
2.70
3.54
42
1.68
2.02
2.42
2.70
3.54
43
1.68
2.02
2.42
2.70
3.53
44
1.68
2.02
2.41
2.69
3.53
45
1.68
2.01
2.41
2.69
3.52
46
1.68
2.01
2.41
2.69
3.51
47
1.68
2.01
2.41
2.68
3.51
48
1.68
2.01
2.41
2.68
3.50
49
1.68
2.01
2.40
2.68
3.50
50
1.68
2.01
2.40
2.68
3.50

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Level of Significance for a Directional Test

0.05
0.025
0.01
0.005
0.0005

Level of Significance for a Non-directional Test
df
0.10
0.05
0.02
0.01
0.001
51
1.68
2.01
2.40
2.68
3.49
52
1.67
2.01
2.40
2.67
3.49
53
1.67
2.01
2.40
2.67
3.48
54
1.67
2.00
2.40
2.67
3.48
55
1.67
2.00
2.40
2.67
3.48
56
1.67
2.00
2.39
2.67
3.47
57
1.67
2.00
2.39
2.66
3.47
58
1.67
2.00
2.39
2.66
3.47
59
1.67
2.00
2.39
2.66
3.46
60
1.67
2.00
2.39
2.66
3.46

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Level of Significance for a Directional Test

0.05
0.025
0.01
0.005
0.0005

Level of Significance for a Non-directional Test
df
0.10
0.05
0.02
0.01
0.001
61
1.67
2.00
2.39
2.66
3.46
62
1.67
2.00
2.39
2.66
3.45
63
1.67
2.00
2.39
2.66
3.45
64
1.67
2.00
2.39
2.65
3.45
65
1.67
2.00
2.39
2.65
3.45
66
1.67
2.00
2.38
2.65
3.44
67
1.67
2.00
2.38
2.65
3.44
68
1.67
2.00
2.38
2.65
3.44
69
1.67
1.99
2.38
2.65
3.44
70
1.67
1.99
2.38
2.65
3.43

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Level of Significance for a Directional Test

0.05
0.025
0.01
0.005
0.0005

Level of Significance for a Non-directional Test
df
0.10
0.05
0.02
0.01
0.001
71
1.67
1.99
2.38
2.65
3.43
72
1.67
1.99
2.38
2.65
3.43
73
1.67
1.99
2.38
2.64
3.43
74
1.67
1.99
2.38
2.64
3.43
75
1.67
1.99
2.38
2.64
3.42
76
1.67
1.99
2.38
2.64
3.42
77
1.66
1.99
2.38
2.64
3.42
78
1.66
1.99
2.38
2.64
3.42
79
1.66
1.99
2.37
2.64
3.42
80
1.66
1.99
2.37
2.64
3.42
81
1.66
1.99
2.37
2.64
3.41
82
1.66
1.99
2.37
2.64
3.41
83
1.66
1.99
2.37
2.64
3.41
84
1.66
1.99
2.37
2.64
3.41
85
1.66
1.99
2.37
2.63
3.41

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Level of Significance for a Directional Test

0.05
0.025
0.01
0.005
0.0005

Level of Significance for a Non-directional Test
df
0.10
0.05
0.02
0.01
0.001
90
1.66
1.99
2.37
2.63
3.40
100
1.66
1.98
2.36
2.63
3.39
120
1.66
1.98
2.36
2.62
3.37
140
1.66
1.98
2.35
2.61
3.36
160
1.65
1.97
2.35
2.61
3.35
200
1.65
1.97
2.35
2.60
3.34
220
1.65
1.97
2.34
2.60
3.34
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