Valor Crítico de la T de Estudiante

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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

Top

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

Top

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

Top

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

Top

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

Top

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

Top

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

Top

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

Top

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
Top