1. Department of Statistics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
2. Department of Mathematics, Mirpur University of Science and Technology (MUST), Mirpur, Pakistan
3. Department of Statistics and computer Science, University of Veterinary and Animal Sciences, Lahore, Pakistan
4. Department of Industrial and Management Engineering, POSTECH, Pohang, Republic of Korea
5. Department of Statistics, GC University, Lahore, Pakistan