Hycinth Chukwudi Iwu

Federal University of Technology Owerri Nigeria PMB 1526, Owerri Nigeria

Chukwudi J. Ogbonna

Federal University of Technology Owerri Nigeria PMB 1526, Owerri Nigeria

Opara Jude

Department of Statistics, Imo State University PMB 2000, Owerri Nigeria

Kalu Georgina Onuma

Federal University of Technology Owerri Nigeria PMB 1526, Owerri Nigeria