Main Article Content
Abstract
This article introduces a new three-parameter lifetime model with an increasing and bathtub failure rate functions as an extension of the Mustapha type II distribution (MuII). The model can be very useful in statistical studies, reliability, computer sciences and engineering. Various mathematical and statistical properties of the distribution are discussed, such as moments, mean deviations, Bonferroni and Lorenz curves, entropy, order statistic, and extreme value distributions. Moreover, we consider the bivariate extension of the new model. Statistical inferences by the maximum likelihood method are discussed and assess by simulation studies. Applications of the proposed model to two right-skewed data are presented for illustration. The new model provides a better fit than some other existing distribution as measured by some model selection criteria and goodness of fits statistics.
Keywords
Mustapha type II distribution
Moments
Entropy
Maximum Likelihood Estimation
Article Details
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How to Cite
Muhammad, M., Muhammad, I., Bouchane, M., Aslam, M., Musa, S., & Ali Rano, S. (2024). A new bathtub and increasing failure rate model: An extension of the Mustapha type II distribution. Pakistan Journal of Statistics and Operation Research, 20(1), 49-67. https://doi.org/10.18187/pjsor.v20i1.3614
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