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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.