Unformatted text preview: the F-Table, which contains the critical values for the right-tail probabilities only. However, one might use the following nice property of F-distribution that: F ν 1, ν 2, 1- α = 1 / F ν 2, ν 1, α to obtain the critical values for the left-tail probabilities. Here is a numerical example: F 2, 3, 0.9 = 1 / F 3, 2, 0.1 = 1 / 9.16 = 0.109 You need both tails probabilities for test of hypothesis and construction of confidence interval for the ratio of two independent populations' variances. You might like to use F-Density Function to obtain its P-values....
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This note was uploaded on 10/04/2011 for the course ECO 6416 taught by Professor Staff during the Spring '08 term at University of Central Florida.
- Spring '08