On Modified Inverse Shanker Distribution and Applications
Grace O. Nwadiogbu
Department of Statistics, Nnamdi Azikiwe University, Awka, Nigeria.
F. C. Eze
Department of Statistics, Nnamdi Azikiwe University, Awka, Nigeria.
Chrisogonus K. Onyekwere *
Department of Statistics, Nnamdi Azikiwe University, Awka, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
Due to variations in life occurrences, descriptions or interpretations and predictions with some level of accuracy has become challenging. In order to use models to solve these problems, statisticians have provided numerous number of probability distributions which can be used to describe one situation or the other. Rama shanker provided Shanker distribution which is not flexible enough to accommodate datasets with decreasing function. In order to add flexibility to Shankers’ distribution, the aim of this article is to suggest a new model developed by modifying shankers’ distribution. The new distribution will be called “Modified inverse Shanker distribution”. It has one special case, inverse Shanker distribution. Besides the basic properties of the distribution, the maximum likelihood technique of estimating the parameters of the distribution and some of the reliability measures are also discussed. We also illustrate the applicability of the proposed distribution using two real datasets.
Keywords: Modified shanker distribution, exponentiated distribution, inverse shanker distribution, generalized shanker distribution, inverse distributions