Eleazar C. Nwogu

Modified Preston-Bennett Method for Estimation of Adult Mortality in Developing Countries

Eleazar C. Nwogu, Felix N. Nwobi & Chinonso O. Okoro · Archives of Current Research International · 2021

This study proposes a modified Preston-Bennett method for the estimation of adult mortality in developing countries. Unlike the previous method, the proposed method derives estimates of adult mortality directly from the 5-year age distribution at the mid-point of the inter-censal...

Open access Research Article 10.9734/acri/2021/v21i530244

On the Effects of Missing Values on Estimates of Trend Parameters and Seasonal Indices in Descriptive Time Series Analysis

Lawrence C. Kiwu, Eleazar C. Nwogu, Chukwudi J. Ogbonna, Hycinth C. Iwu & Iheanyi S. Iwueze · Archives of Current Research International · 2025

In literature, when missing values are observed in a series, emphasis has always been on obtaining the estimates of the missing values while little or no attention has been given to assessing the effects of the missing values on parameter estimates. The aim of this study therefor...

Open access Research Article 10.9734/acri/2025/v25i41142