What is the F table in statistics?
The F Statistic Table.
The F Table is a collection of tables that give you the probability for a certain alpha level.
The F Table is actually a collection of tables, for four alpha levels: .
How do you find the critical value of F?
Finding the critical value of F (ANOVA) –
What is the mean of an F distribution?
The distribution of all possible values of the f statistic is called an F distribution, with v1 = n1 – 1 and v2 = n2 – 1 degrees of freedom. The mean of the distribution is equal to v2 / ( v2 – 2 ) for v2 > 2. The variance is equal to [ 2 * v22 * ( v1 + v1 – 2 ) ] / [ v1 * ( v2 – 2 )2 * ( v2 – 4 ) ] for v2 > 4.
How do you find F in Anova table?
The F column, not surprisingly, contains the F-statistic. Because we want to compare the “average” variability between the groups to the “average” variability within the groups, we take the ratio of the Between Mean Sum of Squares to the Error Mean Sum of Squares. That is, the F-statistic is calculated as F = MSB/MSE.
What is a good f value?
An F statistic of at least 3.95 is needed to reject the null hypothesis at an alpha level of 0.1. At this level, you stand a 1% chance of being wrong (Archdeacon, 1994, p. 168). For more details on how to do this, see: F Test. F Values will range from 0 to an arbitrarily large number.