Lehmann Type II weighted Weibull distribution

International Journal of Physical Sciences

N. I. Badmus¹ 

关键词: Asymptotic;    hazard rate;    Lehmann Type II;    moments;    weighted-Weibull.;   

DOI  :  10.5897/IJPS2013.4078

学科分类：物理（综合）

来源: Academic Journals

【 摘 要 】

We upgrade on the method used on weighted Weibull model proposed by Azzalini (1985) using the logit of Beta function by Jones (2004) to have Lehmann Type II weighted Weibull model with a view to obtaining a distribution that is more better than both weighted Weibull and Weibull distribution in terms of estimate of their characteristics and their parameter. The weighted Weibull distribution is proposed by slightly modifying the method of Azzalini (1985) on weighted distribution with additional shape and scale parameters. Some basic properties of the newly proposed distribution including moments and moment generating function, survival rate function, hazard rate function, asymptotic behaviours, and the estimation of parameters have been studied.

【 授权许可】

CC BY