International Journal of Statistical Sciences

Editor-in-Chief Dr. Bikas K. Sinha, Retired Professor of Statistics, Indian Statistical Institute, Kolkata-700108, India

Guest Editors Dr. A.H.M. Rahmatullah Imon, Professor, Dept. of Mathematical Sciences, Ball State University, USA Dr. Md. Rezaul Karim, Professor, Dept. of Statistics, University of Rajshahi, Bangladesh

Executive Editor Dr. M. Sayedur Rahman, Prof., Dept. of Statistics, University of Rajshahi, Rajshahi, Bangladesh

Associate Editors Dr. Md. Nurul Haque Mollah, Prof., Dept. of Statistics, University of Rajshahi, Rajshahi, Bangladesh Dr. Mst. Papia Sultana, Prof., Dept. of Statistics, University of Rajshahi, Rajshahi, Bangladesh Dr. Md. Abdul Khalek, Prof., Dept. of Statistics, University of Rajshahi, Rajshahi, Bangladesh

Member Secretary

Dr. Md. Nasim Mahmud, Dept. of Statistics, University of Rajshahi, Rajshahi, Bangladesh

Editorial Board

Beg, A.B.M. Rabiul Alam, Dr., Prof., Biswas, Soma Chowdhury, Dr., Prof., El-Shaarawi, A. H., Dr., Prof., School of Business, Department of Statistics, Department of Statistics, James Cook University, University of Chittagong, McMaster University, Townsville QLD 4811, Australia Bangladesh Hamilton, Ontario, Canada

Imon, A. H. M. Rahmatullah, Dr., Prof., Islam, M. Ataharul, Dr., Prof., Islam, M. Nurul, Dr., Prof., Dept. of Mathematical Sciences, QMH, Professor, Department of Statistics, Ball State University, ISRT, University of Dhaka, University of Rajshahi, Muncie, IN 47306, USA Dhaka-1000, Bangladesh Rajshahi-6205, Bangladesh

Joarder, Anwar H., Dr., Prof., Karim, M. Rezaul, Dr., Prof., Kaykobad, M., Dr., Prof., Dept. of Com. Sc. & Engineering, Department of Statistics, Department of Computer Northern University of Business and University of Rajshahi, Science, and Engineering, Technology Khulna (NUBTK), Khulna, Rajshahi-6205, Bangladesh Bangladesh University of Bangladesh Engineering and Technology, Dhaka, Bangladesh

Khan, Shahjahan, Dr., Prof., Kibria, M. G., Dr., Prof., Knapp, Guido, Dr., Prof., School of Sciences, Department of Statistics, Department of Statistics, Univ. of Southern Queensland, Florida International University, TU Dortmund University, Toowoomba, Qld 4350, Australia University Park, Miami, USA 44221 Dortmund, Germany

Latif, Mahbub, Dr., Prof., Rahman, Mezbahur., Dr., Prof., Majumder, Ajit, K., Dr., Prof., ISRT, University of Dhaka, Department of Statistics, Department of Statistics, Dhaka-1000, Bangladesh Minnesota State University, Jahangirnagar University, Mankato, MN 56001, USA Bangladesh

Mazumdar, Sati, Dr., Nummi, Tapio, Dr., Prof., Roy, M. K., Dr., Prof., Professor Emeritus, Research Director, Department of Statistics, Department of Biostatistics, Center for Applied Statistics and M. Bhashani Sci, & Tech. University of Pittsburgh, Data Analytics, Tampere University, University, Pittsburgh, PA 15261, USA Finland Santosh, Tangail, Bangladesh

Shah, M. A., Dr., Prof., Suzuki, K., Dr., Prof., Verma, Med Ram, Dr., Department of Statistics, Department of Systems Engineering, Senior Scientist (Agri. Stat.), University of Rajshahi, The University of Electro- ICAR- Indian Veterinary Rajshahi-6205, Bangladesh Communication, Chofu, Research Institute (IVRI), Tokyo, Japan Izatnagar, Bareilly, U. P., India