Phuengporn Thongchomphu
Department of Statistics, Faculty of Science, Khon Kaen University, Khon Kaen
Thailand

Masters student, 

Department of Statistics, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.

Tidadeaw Mayureesawan
Department of Statistics, Faculty of Science, Khon Kaen University, Khon Kaen
Thailand

Thesis Advisor, 

Department of Statistics, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.