A new generalized normal distribution: Properties and applications

Mohammad A. Aljarrah, Felix Famoye and Carl Lee

Communications in Statistics - Theory and Methods, 2019, vol. 48, issue 18, 4474-4491

Abstract: The most commonly studied generalized normal distribution is the well-known skew-normal by Azzalini. In this paper, a new generalized normal distribution is defined and studied. The distribution is unimodal and it can be skewed right or left. The relationships between the parameters and the mean, variance, skewness, and kurtosis are discussed. It is observed that the new distribution has a much wider range of skewness and kurtosis than the skew-normal distribution. The method of maximum likelihood is proposed to estimate the distribution parameters. Two real data sets are applied to illustrate the flexibility of the distribution.

Date: 2019
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DOI: 10.1080/03610926.2018.1483509

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