|
Abstract
|
Any given system can be represented as a parallel arrangement of series structures. Motivated by this fact, a
general family of distributions is introduced, by adding two extra parameters to a distribution (called baseline distribution),
twice compounding with power series distribution. The new family can allow various hazard rate curves that compete well
with other alternatives in fitting real data. We derive formal expressions for its moments, generating function, mean residual
lifetime and other reliability functions. Certain characterizations of the new family are presented in terms of the ratio of two
truncated moments as well as based on the hazard rate function. The maximum likelihood estimation technique is used to
estimate the model parameters and a simulation study is conducted to investigate the performance of the maximum likelihood
estimates. Finally, two applications of the model with real data sets are presented to illustrate the usefulness of the proposed
distribution.
|