Institution: | 1. Department of Statistics , Forman Christian College University , Lahore , Pakistan aslam_ravian@hotmail.com;3. Department of Industrial Engineering &4. Management Information , Huafan University , Taipei , Taiwan;5. Department of Nursing , Chang Gung Institute of Technology , Chiayi , Taiwan;6. Department of Industrial and Management Engineering , POSTECH , Pohang , Republic of Korea;7. National College of Business Administration &8. Economics , Lahore , Pakistan;9. Department of Statistics , Forman Christian College University , Lahore , Pakistan |