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العنوان
ON MARSHALL - OLKIN TECHNIQUE OF EXTENDING UNIVARITE DISTRIBUTIONS /
المؤلف
Aghel, Wesal Emhemed Ramadan.
هيئة الاعداد
باحث / وصال امحمد رمضان عقل
مشرف / محمد غريب محمود
مشرف / بهادى ابراهيم محمد
تاريخ النشر
2018.
عدد الصفحات
127 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
التحليل العددي
تاريخ الإجازة
1/1/2018
مكان الإجازة
جامعة عين شمس - كلية العلوم - الرياضيات
الفهرس
Only 14 pages are availabe for public view

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from 127

Abstract

problems of establishing and extending new classes and families of discrete and continuous probability distributions are one of the most important research topics in the theory of distributions.
The Kotz and Vicari (2005) gave highlights the most important early developments of statistical distributions. Since 1980, research methods have begun to generate new distributions that tend to add new parameters to known statistical distributions.
This is probably due to the mathematical and analytic capabilities available in software such as R (packages), Matlabm, Mable and Mathemahca, through which researchers can easily tackle problems with incomplete beta and gamma functions in generalized family.
The second reason lies in the characteristics of the curved tail of the new statistical distribution produced by adding one or more parameters to old distribution.
Thirdly, this parameters (s) induction has also proved to be helpful In improving the goodness of fit of the proposed family of distribution.
In (1997) Marshall and Olkin proposed a technique for adding a parameter to an existing distribution. Marshall and Olkin extended distributions offer a wide range of behavior than the basic distributions form which the are derived. The property that the extended form of distributions can have an testing hazard function depending on the value of the added parameter and therefore can be used to model real situation in a better manner than the basic distribution, resulted in the detailed of Marshall and Olkin extended family of distribution.
The thesis consists of three chapters as follows:
Chapter I: presents basic concepts and characteristics of Marshall and Olkin distribution and some previous researches related to it. This chapter also gives a brief overview of new distributions generated by this method.
The chapter and exposing with some generalizations of Marshall and Olkin generated of distributions.
Chapter II: This chapter introduces a new application of Marshall and Olin method to Inverse Pareto distribution. The statistical properties of the new model are discussed and maximum likelihood used to estimate parameters, quantile function, moments and order statistics. Finally, usefulness of the new model for modeling reliability data is illustrated using two real data sets with simulation study.
The results of this chapter were published in the periodical:
International Journal of Statistics and Probability.2017, 6(6), 71-84.
Chapter III: This chapter presents a new generalization of the Marshall and Olkin method presented by Sandhya and Prasanth (2014). We obtained a new distribution (EMOU) as an application for the proposed distribution. We studied some statistical properties of new model for example hazard rate function, quantile function and moments, then we numerically calculated the mean, the standard deviation, and Shannon’s entropy of the given model at different values of parameters. To examine the performance of our new model in fitting several data we use real set of data to compare the fitting of new model with some well-known models, which provides best fit to all of data.
The results of this chapter were published in the following periodical:
International Journal of Modern Engineering Research .2017, 7(8), 34-48