E. J. Ekpenyong

On the optimal search for efficient estimators of population mean in simple random sampling in the presence of an auxiliary variable

E. I. Enang, E. J. Ekpenyong, 2016 .

Analysis of deaths in a Nigerian hospital: the case of Federal Medical Centre (FMC), Umuahia

E. J. Ekpenyong, I. Emenike, 2015 .

A modified class of ratio estimators for population mean

E. I. Enang, E. J. Ekpenyong, Sylvanus Itoro Etuk, 2016 .

Efficient Exponential Ratio Estimator for Estimating the Population Mean in Simple Random Sampling

E. J. Ekpenyong, 2014 .

Alternative Ratio Estimator of Population Mean in Simple Random Sampling

E. I. Enang, E. J. Ekpenyong, V. Akpan, 2014 .

Modeling Inflation Rates using Periodogram and Fourier Series Analysis Methods: The Nigerian Case

C. Omekara, E. J. Ekpenyong, E. M. Peter, 2014 .

Modeling the Nigerian inflation rates using periodogram and Fourier Series Analysis

E. J. Ekpenyong, C. O. Omekara, Michael P. Ekerete, 2013 .

Imputation of Missing Values in Economic and Financial Time Series Data Using Five Principal Component Analysis (PCA) Approaches

Chisimkwuo John, Emmanuel John Ekpenyong, Charles C. Nworu, 2019, Central Bank of Nigeria Journal of Applied Statistics.

Generalized Class of Mean Estimators with Known Measures for Outliers Treatment

Amer Ibrahim Al-Omari, Ibrahim M. Almanjahie, Mir Subzar, 2021, Comput. Syst. Sci. Eng..

Pseudo-Additive (Mixed) Fourier Series Model of Time Series

E. J. Ekpenyong, 2008 .