What is the F-Distribution Calculator?

The F-Distribution Calculator allows users to evaluate the statistical significance of an observed F-statistic by computing the p-value based on specified numerator and denominator degrees of freedom, which is commonly used in ANOVA or regression analysis to test the equality of variances. By entering the F-statistic, the numerator (df₁) and denominator (df₂) degrees of freedom, and selecting the tail type—right-tailed, left-tailed, or two-tailed—the calculator instantly determines the corresponding p-value, helping researchers and students quickly interpret whether the observed F-value provides evidence to reject the null hypothesis, without requiring manual table lookups or complex calculations.

How to Use:

1. Enter F-Statistic Value: Type the calculated F-statistic.
2. Enter Degrees of Freedom: Provide numerator df (df₁) and denominator df (df₂).
3. Select Tail Type: Choose right-tailed, left-tailed, or two-tailed test.
4. Click Calculate: The tool computes the p-value automatically.
5. Check Output: The result displays the F-statistic, degrees of freedom, and p-value for interpretation.