Statistics for detecting outliers generally suffer from masking when multiple outliers are present. One aspect of this masking is inflation by the outliers of estimates of scale. This shrinks test ...

The DD plot is a plot of classical vs. robust Mahalanobis distances: MD i vs. RD i. The DD plot can be used as a diagnostic for multivariate normality and elliptical symmetry, and to assess the ...

Business forecasting is essential for the survival for companies of all sizes. The building block used by forecasters is historical data or the past performance of the business to predict future ...

When you perform regression analysis in Microsoft Excel, you are engaging in a statistical process that helps you understand the relationship between variables. This technique is particularly useful ...