kurtosissymmetryWe examine and extend the argument of Horswell and Looney (1993), who claimed that the test for normality based on the sample skewness coefficient does not reliably discriminate between skewed and symmetric distributions. Theoretical and simulation evidence is given.doi:10.1080/...
Multivariate skewness and kurtosis can also be estimatedfrom ensembles of forecasts and provide useful information on the reliability of the samplemean and covariance estimated from the ensemble. They can also give useful information onthe non-linearity of the evolution in phase space. Entropy can ...
(NA) or a value of 0 recorded. In this dataset, SOC ranges from 0 to 57.2% with a mean of 2.5% and median of 0.52%, thus skewness and kurtosis are high. There is one record with a ‘NA’ value and 288 records with a value of 0%. TN has a range of 0 to 4.17%; the mean...
Like skewness and kurtosis, the ramifications of heteroskedasticity will cause standard deviation to be an unreliable measure of risk. Taken collectively, these three problems can cause investors to misunderstand the potential volatility of their investments, and cause them to potentially take much more ...