Exercise

Numerical tests for multivariate normality

Besides the graphical tests using QQ-plot, the MVN library has a range of numerical tests for checking multivariate normality. Along with the significance tests, these tests provide an inferential statement about whether the data are multivariate normal.

Instructions

100 XP

Use the mardiaTest() function to find whether the multnorm.sample dataset follows multivariate normality.
Use the hzTest() function to find whether the first four numeric variables, Alcohol, Malic, Ash, Alcalinity of the wine dataset follow multivariate normality.