Re: Comparing two variation coefficients

Alfred <fredo@xxxxxxxx> wrote:
Dear All,

What test (possibly non -parametric) can be used to test
the differences between two variation coefficient (std dev / mean) ?

Thanks

Fredo

Here's a comprehensive source on your problem and related
ones. There is a pretty reasonable asymptotic approximation,
but many people have used bootstrapping approaches for small
samples.

Donnelly SM, Kramer A 1999. Testing for multiple species in fossil
samples: An evaluation and comparison of tests for equal relative
variation. American Journal of Physical Anthropology 108 (4): 507-529

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