This preview shows page 1. Sign up to view the full content.
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 1, 2, 1- = 1 / F 2, 1, 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....
View Full Document
- Spring '08