How does rising atmospheric CO2 affect marine organisms?

Click to locate material archived on our website by topic


F-Table

Please note: The significance of the regression model depends upon several statistical assumptions. We do not explicitly state these assumptions here. Please consult an appropriate reference (e.g., textbook, statistician) for a detailed explanation of these assumptions.

If the F-value output by the plotting routine is greater than the F-value listed in the table below, then the slope of the linear regression equation is considered to be statistically different from zero. If the F-value is less than than the F-value in the table below, then the slope of the linear regression equation is not considered to be statisitically different from zero.

Degrees of Freedom

F-value
95% Confidence Level

F-value
99% Confidence Level

1
161.4
4052
2
18.51
98.49
3
10.13
34.12
4
7.71
21.20
5
6.61
16.26
6
5.99
13.74
7
5.59
12.25
8
5.32
11.26
9
5.12
10.56
10
4.96
10.04
11
4.84
9.65
12
4.75
9.33
13
4.67
9.07
14
4.60
8.86
15
4.54
8.68
16
4.49
8.53
17
4.45
8.40
18
4.41
8.28
19
4.38
8.18
20
4.35
8.10
21
4.32
8.02
22
4.30
7.94
23
4.28
7.88
24
4.26
7.82
25
4.24
7.77
26
4.22
7.72
27
4.21
7.68
28
4.20
7.64
29
4.18
7.60
30
4.17
7.56
40
4.08
7.31
60
4.00
7.08
120
3.92
6.85
120+
3.84
6.64