0% found this document useful (0 votes)
55 views5 pages

Ftable

The document provides a table of critical values for the F distribution used in ANOVA, with separate tables for p = 0.05 and p = 0.01 significance levels. It outlines the procedure for determining the critical F-ratio based on the obtained F-ratio and associated degrees of freedom. An example illustrates how to use the table to assess the significance of the F-ratio.
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
0% found this document useful (0 votes)
55 views5 pages

Ftable

The document provides a table of critical values for the F distribution used in ANOVA, with separate tables for p = 0.05 and p = 0.01 significance levels. It outlines the procedure for determining the critical F-ratio based on the obtained F-ratio and associated degrees of freedom. An example illustrates how to use the table to assess the significance of the F-ratio.
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 5

Table of critical values for the F distribution (for use with ANOVA):

How to use this table:


There are two tables here. The first one gives critical values of F at the p = 0.05 level of significance.
The second table gives critical values of F at the p = 0.01 level of significance.
1. Obtain your F-ratio. This has (x,y) degrees of freedom associated with it.
2. Go along x columns, and down y rows. The point of intersection is your critical F-ratio.
3. If your obtained value of F is equal to or larger than this critical F-value, then your result is
significant at that level of probability.
An example: I obtain an F ratio of 3.96 with (2, 24) degrees of freedom.
I go along 2 columns and down 24 rows. The critical value of F is 3.40. My obtained F-ratio
is larger than this, and so I conclude that my obtained F-ratio is likely to occur by chance with a p<.05.

Critical values of F for the 0.05 significance level:


1 2 3 4 5 6 7 8 9 10
1 161.45 199.50 215.71 224.58 230.16 233.99 236.77 238.88 240.54 241.88
2 18.51 19.00 19.16 19.25 19.30 19.33 19.35 19.37 19.39 19.40
3 10.13 9.55 9.28 9.12 9.01 8.94 8.89 8.85 8.81 8.79
4 7.71 6.94 6.59 6.39 6.26 6.16 6.09 6.04 6.00 5.96
5 6.61 5.79 5.41 5.19 5.05 4.95 4.88 4.82 4.77 4.74
6 5.99 5.14 4.76 4.53 4.39 4.28 4.21 4.15 4.10 4.06
7 5.59 4.74 4.35 4.12 3.97 3.87 3.79 3.73 3.68 3.64
8 5.32 4.46 4.07 3.84 3.69 3.58 3.50 3.44 3.39 3.35
9 5.12 4.26 3.86 3.63 3.48 3.37 3.29 3.23 3.18 3.14
10 4.97 4.10 3.71 3.48 3.33 3.22 3.14 3.07 3.02 2.98
11 4.84 3.98 3.59 3.36 3.20 3.10 3.01 2.95 2.90 2.85
12 4.75 3.89 3.49 3.26 3.11 3.00 2.91 2.85 2.80 2.75
13 4.67 3.81 3.41 3.18 3.03 2.92 2.83 2.77 2.71 2.67
14 4.60 3.74 3.34 3.11 2.96 2.85 2.76 2.70 2.65 2.60
15 4.54 3.68 3.29 3.06 2.90 2.79 2.71 2.64 2.59 2.54
16 4.49 3.63 3.24 3.01 2.85 2.74 2.66 2.59 2.54 2.49
17 4.45 3.59 3.20 2.97 2.81 2.70 2.61 2.55 2.49 2.45
18 4.41 3.56 3.16 2.93 2.77 2.66 2.58 2.51 2.46 2.41
19 4.38 3.52 3.13 2.90 2.74 2.63 2.54 2.48 2.42 2.38
20 4.35 3.49 3.10 2.87 2.71 2.60 2.51 2.45 2.39 2.35
21 4.33 3.47 3.07 2.84 2.69 2.57 2.49 2.42 2.37 2.32
22 4.30 3.44 3.05 2.82 2.66 2.55 2.46 2.40 2.34 2.30
23 4.28 3.42 3.03 2.80 2.64 2.53 2.44 2.38 2.32 2.28
24 4.26 3.40 3.01 2.78 2.62 2.51 2.42 2.36 2.30 2.26
25 4.24 3.39 2.99 2.76 2.60 2.49 2.41 2.34 2.28 2.24
26 4.23 3.37 2.98 2.74 2.59 2.47 2.39 2.32 2.27 2.22
27 4.21 3.35 2.96 2.73 2.57 2.46 2.37 2.31 2.25 2.20
28 4.20 3.34 2.95 2.71 2.56 2.45 2.36 2.29 2.24 2.19
29 4.18 3.33 2.93 2.70 2.55 2.43 2.35 2.28 2.22 2.18
30 4.17 3.32 2.92 2.69 2.53 2.42 2.33 2.27 2.21 2.17
31 4.16 3.31 2.91 2.68 2.52 2.41 2.32 2.26 2.20 2.15
32 4.15 3.30 2.90 2.67 2.51 2.40 2.31 2.24 2.19 2.14
33 4.14 3.29 2.89 2.66 2.50 2.39 2.30 2.24 2.18 2.13
34 4.13 3.28 2.88 2.65 2.49 2.38 2.29 2.23 2.17 2.12
35 4.12 3.27 2.87 2.64 2.49 2.37 2.29 2.22 2.16 2.11
36 4.11 3.26 2.87 2.63 2.48 2.36 2.28 2.21 2.15 2.11
37 4.11 3.25 2.86 2.63 2.47 2.36 2.27 2.20 2.15 2.10
38 4.10 3.25 2.85 2.62 2.46 2.35 2.26 2.19 2.14 2.09
39 4.09 3.24 2.85 2.61 2.46 2.34 2.26 2.19 2.13 2.08
40 4.09 3.23 2.84 2.61 2.45 2.34 2.25 2.18 2.12 2.08
41 4.08 3.23 2.83 2.60 2.44 2.33 2.24 2.17 2.12 2.07
42 4.07 3.22 2.83 2.59 2.44 2.32 2.24 2.17 2.11 2.07
43 4.07 3.21 2.82 2.59 2.43 2.32 2.23 2.16 2.11 2.06
44 4.06 3.21 2.82 2.58 2.43 2.31 2.23 2.16 2.10 2.05
45 4.06 3.20 2.81 2.58 2.42 2.31 2.22 2.15 2.10 2.05
46 4.05 3.20 2.81 2.57 2.42 2.30 2.22 2.15 2.09 2.04
47 4.05 3.20 2.80 2.57 2.41 2.30 2.21 2.14 2.09 2.04
48 4.04 3.19 2.80 2.57 2.41 2.30 2.21 2.14 2.08 2.04
49 4.04 3.19 2.79 2.56 2.40 2.29 2.20 2.13 2.08 2.03
50 4.03 3.18 2.79 2.56 2.40 2.29 2.20 2.13 2.07 2.03
51 4.03 3.18 2.79 2.55 2.40 2.28 2.20 2.13 2.07 2.02
52 4.03 3.18 2.78 2.55 2.39 2.28 2.19 2.12 2.07 2.02
53 4.02 3.17 2.78 2.55 2.39 2.28 2.19 2.12 2.06 2.02
54 4.02 3.17 2.78 2.54 2.39 2.27 2.19 2.12 2.06 2.01
55 4.02 3.17 2.77 2.54 2.38 2.27 2.18 2.11 2.06 2.01
56 4.01 3.16 2.77 2.54 2.38 2.27 2.18 2.11 2.05 2.01
57 4.01 3.16 2.77 2.53 2.38 2.26 2.18 2.11 2.05 2.00
58 4.01 3.16 2.76 2.53 2.37 2.26 2.17 2.10 2.05 2.00
59 4.00 3.15 2.76 2.53 2.37 2.26 2.17 2.10 2.04 2.00
60 4.00 3.15 2.76 2.53 2.37 2.25 2.17 2.10 2.04 1.99
61 4.00 3.15 2.76 2.52 2.37 2.25 2.16 2.09 2.04 1.99
62 4.00 3.15 2.75 2.52 2.36 2.25 2.16 2.09 2.04 1.99
63 3.99 3.14 2.75 2.52 2.36 2.25 2.16 2.09 2.03 1.99
64 3.99 3.14 2.75 2.52 2.36 2.24 2.16 2.09 2.03 1.98
65 3.99 3.14 2.75 2.51 2.36 2.24 2.15 2.08 2.03 1.98
66 3.99 3.14 2.74 2.51 2.35 2.24 2.15 2.08 2.03 1.98
67 3.98 3.13 2.74 2.51 2.35 2.24 2.15 2.08 2.02 1.98
68 3.98 3.13 2.74 2.51 2.35 2.24 2.15 2.08 2.02 1.97
69 3.98 3.13 2.74 2.51 2.35 2.23 2.15 2.08 2.02 1.97
70 3.98 3.13 2.74 2.50 2.35 2.23 2.14 2.07 2.02 1.97
71 3.98 3.13 2.73 2.50 2.34 2.23 2.14 2.07 2.02 1.97
72 3.97 3.12 2.73 2.50 2.34 2.23 2.14 2.07 2.01 1.97
73 3.97 3.12 2.73 2.50 2.34 2.23 2.14 2.07 2.01 1.96
74 3.97 3.12 2.73 2.50 2.34 2.22 2.14 2.07 2.01 1.96
75 3.97 3.12 2.73 2.49 2.34 2.22 2.13 2.06 2.01 1.96
76 3.97 3.12 2.73 2.49 2.34 2.22 2.13 2.06 2.01 1.96
77 3.97 3.12 2.72 2.49 2.33 2.22 2.13 2.06 2.00 1.96
78 3.96 3.11 2.72 2.49 2.33 2.22 2.13 2.06 2.00 1.95
79 3.96 3.11 2.72 2.49 2.33 2.22 2.13 2.06 2.00 1.95
80 3.96 3.11 2.72 2.49 2.33 2.21 2.13 2.06 2.00 1.95
81 3.96 3.11 2.72 2.48 2.33 2.21 2.13 2.06 2.00 1.95
82 3.96 3.11 2.72 2.48 2.33 2.21 2.12 2.05 2.00 1.95
83 3.96 3.11 2.72 2.48 2.32 2.21 2.12 2.05 2.00 1.95
84 3.96 3.11 2.71 2.48 2.32 2.21 2.12 2.05 1.99 1.95
85 3.95 3.10 2.71 2.48 2.32 2.21 2.12 2.05 1.99 1.94
86 3.95 3.10 2.71 2.48 2.32 2.21 2.12 2.05 1.99 1.94
87 3.95 3.10 2.71 2.48 2.32 2.21 2.12 2.05 1.99 1.94
88 3.95 3.10 2.71 2.48 2.32 2.20 2.12 2.05 1.99 1.94
89 3.95 3.10 2.71 2.47 2.32 2.20 2.11 2.04 1.99 1.94
90 3.95 3.10 2.71 2.47 2.32 2.20 2.11 2.04 1.99 1.94
91 3.95 3.10 2.71 2.47 2.32 2.20 2.11 2.04 1.98 1.94
92 3.95 3.10 2.70 2.47 2.31 2.20 2.11 2.04 1.98 1.94
93 3.94 3.09 2.70 2.47 2.31 2.20 2.11 2.04 1.98 1.93
94 3.94 3.09 2.70 2.47 2.31 2.20 2.11 2.04 1.98 1.93
95 3.94 3.09 2.70 2.47 2.31 2.20 2.11 2.04 1.98 1.93
96 3.94 3.09 2.70 2.47 2.31 2.20 2.11 2.04 1.98 1.93
97 3.94 3.09 2.70 2.47 2.31 2.19 2.11 2.04 1.98 1.93
98 3.94 3.09 2.70 2.47 2.31 2.19 2.10 2.03 1.98 1.93
99 3.94 3.09 2.70 2.46 2.31 2.19 2.10 2.03 1.98 1.93
100 3.94 3.09 2.70 2.46 2.31 2.19 2.10 2.03 1.98 1.93

Critical values of F for the 0.01 significance level:


1 2 3 4 5 6 7 8 9 10
1 4052.19 4999.52 5403.34 5624.62 5763.65 5858.97 5928.33 5981.10 6022.50 6055.85
2 98.50 99.00 99.17 99.25 99.30 99.33 99.36 99.37 99.39 99.40
3 34.12 30.82 29.46 28.71 28.24 27.91 27.67 27.49 27.35 27.23
4 21.20 18.00 16.69 15.98 15.52 15.21 14.98 14.80 14.66 14.55
5 16.26 13.27 12.06 11.39 10.97 10.67 10.46 10.29 10.16 10.05
6 13.75 10.93 9.78 9.15 8.75 8.47 8.26 8.10 7.98 7.87
7 12.25 9.55 8.45 7.85 7.46 7.19 6.99 6.84 6.72 6.62
8 11.26 8.65 7.59 7.01 6.63 6.37 6.18 6.03 5.91 5.81
9 10.56 8.02 6.99 6.42 6.06 5.80 5.61 5.47 5.35 5.26
10 10.04 7.56 6.55 5.99 5.64 5.39 5.20 5.06 4.94 4.85
11 9.65 7.21 6.22 5.67 5.32 5.07 4.89 4.74 4.63 4.54
12 9.33 6.93 5.95 5.41 5.06 4.82 4.64 4.50 4.39 4.30
13 9.07 6.70 5.74 5.21 4.86 4.62 4.44 4.30 4.19 4.10
14 8.86 6.52 5.56 5.04 4.70 4.46 4.28 4.14 4.03 3.94
15 8.68 6.36 5.42 4.89 4.56 4.32 4.14 4.00 3.90 3.81
16 8.53 6.23 5.29 4.77 4.44 4.20 4.03 3.89 3.78 3.69
17 8.40 6.11 5.19 4.67 4.34 4.10 3.93 3.79 3.68 3.59
18 8.29 6.01 5.09 4.58 4.25 4.02 3.84 3.71 3.60 3.51
19 8.19 5.93 5.01 4.50 4.17 3.94 3.77 3.63 3.52 3.43
20 8.10 5.85 4.94 4.43 4.10 3.87 3.70 3.56 3.46 3.37
21 8.02 5.78 4.87 4.37 4.04 3.81 3.64 3.51 3.40 3.31
22 7.95 5.72 4.82 4.31 3.99 3.76 3.59 3.45 3.35 3.26
23 7.88 5.66 4.77 4.26 3.94 3.71 3.54 3.41 3.30 3.21
24 7.82 5.61 4.72 4.22 3.90 3.67 3.50 3.36 3.26 3.17
25 7.77 5.57 4.68 4.18 3.86 3.63 3.46 3.32 3.22 3.13
26 7.72 5.53 4.64 4.14 3.82 3.59 3.42 3.29 3.18 3.09
27 7.68 5.49 4.60 4.11 3.79 3.56 3.39 3.26 3.15 3.06
28 7.64 5.45 4.57 4.07 3.75 3.53 3.36 3.23 3.12 3.03
29 7.60 5.42 4.54 4.05 3.73 3.50 3.33 3.20 3.09 3.01
30 7.56 5.39 4.51 4.02 3.70 3.47 3.31 3.17 3.07 2.98
31 7.53 5.36 4.48 3.99 3.68 3.45 3.28 3.15 3.04 2.96
32 7.50 5.34 4.46 3.97 3.65 3.43 3.26 3.13 3.02 2.93
33 7.47 5.31 4.44 3.95 3.63 3.41 3.24 3.11 3.00 2.91
34 7.44 5.29 4.42 3.93 3.61 3.39 3.22 3.09 2.98 2.89
35 7.42 5.27 4.40 3.91 3.59 3.37 3.20 3.07 2.96 2.88
36 7.40 5.25 4.38 3.89 3.57 3.35 3.18 3.05 2.95 2.86
37 7.37 5.23 4.36 3.87 3.56 3.33 3.17 3.04 2.93 2.84
38 7.35 5.21 4.34 3.86 3.54 3.32 3.15 3.02 2.92 2.83
39 7.33 5.19 4.33 3.84 3.53 3.31 3.14 3.01 2.90 2.81
40 7.31 5.18 4.31 3.83 3.51 3.29 3.12 2.99 2.89 2.80
41 7.30 5.16 4.30 3.82 3.50 3.28 3.11 2.98 2.88 2.79
42 7.28 5.15 4.29 3.80 3.49 3.27 3.10 2.97 2.86 2.78
43 7.26 5.14 4.27 3.79 3.48 3.25 3.09 2.96 2.85 2.76
44 7.25 5.12 4.26 3.78 3.47 3.24 3.08 2.95 2.84 2.75
45 7.23 5.11 4.25 3.77 3.45 3.23 3.07 2.94 2.83 2.74
46 7.22 5.10 4.24 3.76 3.44 3.22 3.06 2.93 2.82 2.73
47 7.21 5.09 4.23 3.75 3.43 3.21 3.05 2.92 2.81 2.72
48 7.19 5.08 4.22 3.74 3.43 3.20 3.04 2.91 2.80 2.72
49 7.18 5.07 4.21 3.73 3.42 3.20 3.03 2.90 2.79 2.71
50 7.17 5.06 4.20 3.72 3.41 3.19 3.02 2.89 2.79 2.70
51 7.16 5.05 4.19 3.71 3.40 3.18 3.01 2.88 2.78 2.69
52 7.15 5.04 4.18 3.70 3.39 3.17 3.01 2.87 2.77 2.68
53 7.14 5.03 4.17 3.70 3.38 3.16 3.00 2.87 2.76 2.68
54 7.13 5.02 4.17 3.69 3.38 3.16 2.99 2.86 2.76 2.67
55 7.12 5.01 4.16 3.68 3.37 3.15 2.98 2.85 2.75 2.66
56 7.11 5.01 4.15 3.67 3.36 3.14 2.98 2.85 2.74 2.66
57 7.10 5.00 4.15 3.67 3.36 3.14 2.97 2.84 2.74 2.65
58 7.09 4.99 4.14 3.66 3.35 3.13 2.97 2.84 2.73 2.64
59 7.09 4.98 4.13 3.66 3.35 3.12 2.96 2.83 2.72 2.64
60 7.08 4.98 4.13 3.65 3.34 3.12 2.95 2.82 2.72 2.63
61 7.07 4.97 4.12 3.64 3.33 3.11 2.95 2.82 2.71 2.63
62 7.06 4.97 4.11 3.64 3.33 3.11 2.94 2.81 2.71 2.62
63 7.06 4.96 4.11 3.63 3.32 3.10 2.94 2.81 2.70 2.62
64 7.05 4.95 4.10 3.63 3.32 3.10 2.93 2.80 2.70 2.61
65 7.04 4.95 4.10 3.62 3.31 3.09 2.93 2.80 2.69 2.61
66 7.04 4.94 4.09 3.62 3.31 3.09 2.92 2.79 2.69 2.60
67 7.03 4.94 4.09 3.61 3.30 3.08 2.92 2.79 2.68 2.60
68 7.02 4.93 4.08 3.61 3.30 3.08 2.91 2.79 2.68 2.59
69 7.02 4.93 4.08 3.60 3.30 3.08 2.91 2.78 2.68 2.59
70 7.01 4.92 4.07 3.60 3.29 3.07 2.91 2.78 2.67 2.59
71 7.01 4.92 4.07 3.60 3.29 3.07 2.90 2.77 2.67 2.58
72 7.00 4.91 4.07 3.59 3.28 3.06 2.90 2.77 2.66 2.58
73 7.00 4.91 4.06 3.59 3.28 3.06 2.90 2.77 2.66 2.57
74 6.99 4.90 4.06 3.58 3.28 3.06 2.89 2.76 2.66 2.57
75 6.99 4.90 4.05 3.58 3.27 3.05 2.89 2.76 2.65 2.57
76 6.98 4.90 4.05 3.58 3.27 3.05 2.88 2.76 2.65 2.56
77 6.98 4.89 4.05 3.57 3.27 3.05 2.88 2.75 2.65 2.56
78 6.97 4.89 4.04 3.57 3.26 3.04 2.88 2.75 2.64 2.56
79 6.97 4.88 4.04 3.57 3.26 3.04 2.87 2.75 2.64 2.55
80 6.96 4.88 4.04 3.56 3.26 3.04 2.87 2.74 2.64 2.55
81 6.96 4.88 4.03 3.56 3.25 3.03 2.87 2.74 2.63 2.55
82 6.95 4.87 4.03 3.56 3.25 3.03 2.87 2.74 2.63 2.55
83 6.95 4.87 4.03 3.55 3.25 3.03 2.86 2.73 2.63 2.54
84 6.95 4.87 4.02 3.55 3.24 3.03 2.86 2.73 2.63 2.54
85 6.94 4.86 4.02 3.55 3.24 3.02 2.86 2.73 2.62 2.54
86 6.94 4.86 4.02 3.55 3.24 3.02 2.85 2.73 2.62 2.53
87 6.94 4.86 4.02 3.54 3.24 3.02 2.85 2.72 2.62 2.53
88 6.93 4.86 4.01 3.54 3.23 3.01 2.85 2.72 2.62 2.53
89 6.93 4.85 4.01 3.54 3.23 3.01 2.85 2.72 2.61 2.53
90 6.93 4.85 4.01 3.54 3.23 3.01 2.85 2.72 2.61 2.52
91 6.92 4.85 4.00 3.53 3.23 3.01 2.84 2.71 2.61 2.52
92 6.92 4.84 4.00 3.53 3.22 3.00 2.84 2.71 2.61 2.52
93 6.92 4.84 4.00 3.53 3.22 3.00 2.84 2.71 2.60 2.52
94 6.91 4.84 4.00 3.53 3.22 3.00 2.84 2.71 2.60 2.52
95 6.91 4.84 4.00 3.52 3.22 3.00 2.83 2.70 2.60 2.51
96 6.91 4.83 3.99 3.52 3.21 3.00 2.83 2.70 2.60 2.51
97 6.90 4.83 3.99 3.52 3.21 2.99 2.83 2.70 2.60 2.51
98 6.90 4.83 3.99 3.52 3.21 2.99 2.83 2.70 2.59 2.51
99 6.90 4.83 3.99 3.52 3.21 2.99 2.83 2.70 2.59 2.51
100 6.90 4.82 3.98 3.51 3.21 2.99 2.82 2.69 2.59 2.50

You might also like