1. Department of Applied Statistics, INTI International University Malaysia, Persiaran Perdana BBN, Putra Nilai, Nilai 71800, Malaysia
2. Centre for Australian Degree Programs, Inti International College Penang, Bayan Lepas 11900, Malaysia
3. Department of Decision Science, Faculty of Business and Economics, University of Malaya, Lembah Pantai, Kuala Lumpur 50603, Malaysia
4. Department of Econometrics and Business Statistics, Monash Business School, Monash University, P.O. Box 197, Caulfield, VIC 3145, Australia