F Test Critical Value Chart. Easy to use critical value calculator for converting a probability value alpha threshold a k a. The point of intersection is your critical f ratio.
Note that the f inv rt function in excel will throw an error if any of the following occur. 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. For the f test critical value distribution table for alpha 0 05 below the rows represent denominator degrees of freedom and the columns represent numerator degrees of freedom.
Fisher s f distribution table how to use.
This returns the value 4 5337. More specifically a test statistic is computed with ν 1 and ν 2 degrees of freedom and the result is compared to this table. Note that this also matches the number we would find in the f distribution table with α 0 05 df1 numerator degrees of freedom 4 and df2 denominator degrees of freedom 6. This is the critical value for a significance level of 0 05 numerator degrees of freedom 4 and denominator degrees of freedom 6.
