MedCalc

# Free statistical calculators

## Description

Performs a test for the comparison of two coefficients of variation (from independent samples), expressed as a percentage.

## Required input

• Enter the two coefficients of variation, expressed as percentages, and the corresponding number of cases.

## Results

When the calculated P value is less than 0.05, the conclusion is that the two coefficients of variation are significantly different.

MedCalc uses the test by Forkman, 2009.

## Literature

• Forkman J (2009) Estimator and tests for common coefficients of variation in normal distributions. Communications in Statistics - Theory and Methods 38:233-251.