1. Department of Statistics and Operations Research, King Saud University, Riyadh 11362, Saudi Arabia
2. Department of Mathematics and Statistics-College of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
3. Department of Statistics, Faculty of Business Administration, Delta University of Science and Technology, Gamasa, Egypt
4. Faculty of Graduate Studies for Statistical Research, Cairo University, Giza 12613, Egypt