A new mixed beta distribution and structural properties with applications
Tipagorn Insuk, Winai Bodhisuwan, and Uraiwan Jaroenjeratikun
pp. 97 - 108
Abstract
In this paper, we introduce a new six-parameter distribution, namely Beta Exponentiated Weibull Poisson (BEWP) which is obtained by compounding between the exponentiated Weibull Poisson and beta distributions. We propose its basic structural properties such as density function and moments for this new distribution. We re-express the BEWP density function as a EWP linear combination, and use this to obtain its moments. In addition, it also contains several sub-models that are well known. Moreover, we apply the maximum likelihood method to estimate parameters, and applications to real data sets show the superiority of this new distribution by comparing the fitness with its sub-models.