Bimodal skew-symmetric normal distribution

M.Y. Hassan and M.Y. El-Bassiouni

Communications in Statistics - Theory and Methods, 2016, vol. 45, issue 5, 1527-1541

Abstract: We introduce a new parsimonious bimodal distribution, referred to as the bimodal skew-symmetric Normal (BSSN) distribution, which is potentially effective in capturing bimodality, excess kurtosis, and skewness. Explicit expressions for the moment-generating function, mean, variance, skewness, and excess kurtosis were derived. The shape properties of the proposed distribution were investigated in regard to skewness, kurtosis, and bimodality. Maximum likelihood estimation was considered and an expression for the observed information matrix was provided. Illustrative examples using medical and financial data as well as simulated data from a mixture of normal distributions were worked.

Date: 2016
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DOI: 10.1080/03610926.2014.882950

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