Nwogu, Eleazer C., Department of Statistics, Federal University of Technology, P. M. B. 1526, Owerri, Imo State, Nigeria.
Nwokoro, P.U., University of Nigeria, Nsukka, Nigeria
Nwozo, Chukwuma R., University of Ibadan
Nyabadza, F., University of Johannesburg
Nyabadza, Farai
Nyaberi, H.O., Kenyatta University
Nyanaro, Brian Nyasagare, The Catholic University of Eastern Africa.

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