A test for normality based on the empirical distribution function Articles uri icon

publication date

  • June 2016

start page

  • 55

end page

  • 87

issue

  • 1

volume

  • 40

international standard serial number (ISSN)

  • 1696-2281

electronic international standard serial number (EISSN)

  • 2013-8830

abstract

  • In this paper, a goodness-of-fit test for normality based on the comparison of the theoretical and empirical distributions is proposed. Critical values are obtained via Monte Carlo for several sample sizes and different significance levels. We study and compare the power of forty selected normality tests for a wide collection of alternative distributions. The new proposal is compared to some traditional test statistics, such as Kolmogorov-Smirnov, Kuiper, Cramer-von Mises, Anderson-Darling, Pearson Chi-square, Shapiro-Wilk, Shapiro-Francia, Jarque-Bera, SJ, Robust Jarque-Bera, and also to entropy-based test statistics. From the simulation study results it is concluded that the best performance against asymmetric alternatives with support on the whole real line and alternative distributions with support on the positive real line is achieved by the new test. Other findings derived from the simulation study are that SJ and Robust Jarque-Bera tests are the most powerful ones for symmetric alternatives with support on the whole real line, whereas entropy-based tests are preferable for alternatives with support on the unit interval.

keywords

  • empirical distribution function; entropy estimator; goodness of fit tests; monte carlo simulation; robust jarque bera test; shapiro francia test; sj test; test for normality; square-root b1; regression residuals; correcting moments; sample entropy; variance test; goodness; power; b2