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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
-
0.05
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
-
0.05
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
-
0.05
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
-
0.05
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
-
0.05
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
-
0.05
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
-
0.05
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
-
0.05
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
-
0.05
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