F-Test of Equality of Variances

Introduction to F-Test of Equality of Variances

The F-test of equality of variances is used to assess whether there is a significant difference between the variances of two populations. This test helps in checking the assumption of equal variances, which is a prerequisite for certain types of statistical analyses, including the ANOVA (Analysis of Variance).

Parameter usage:

• sample1Variance= Variance of the first sample
• sample2Variance= Variance of the second sample

Example valid values:

• sample1Variance= 4
• sample2Variance= 8

Output:

• result= The F-test statistic, a ratio of two variances

Data validation:

Checks for non-numerical values and variances being greater than zero.

Summary

This calculator determines the F-test statistic for two sample variances, useful in various statistical applications to verify the assumption of equal variances.