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Kurtosis calculation in Statistics Wizard
Posted: Mon Jul 07, 2014 2:11 pm
by upani
Dear All,
How to interpret excess(Kurtosis) in Statistics wizard. Is it 3 + excess value ?
With regards,
Upananda
Re: Kurtosis calculation in Statistics Wizard
Posted: Mon Jul 07, 2014 3:08 pm
by TomDoan
upani wrote:Dear All,
How to interpret excess(Kurtosis) in Statistics wizard. Is it 3 + excess value ?
With regards,
Upananda
The statistic produced is the excess kurtosis which is the standardized fourth moment minus 3, so it has expected value zero for a Normal population. Mathematically and statistically, it's the more natural measure.