Amaefula Chibuzo

Amaefula Chibuzo
Federal University, Otuoke | FUOTUOKE · mathematics and Statistics

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Publications (4)
Article
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Time base difference technique is introduced in filtering the exogenous variable into two indicative predictor variables in state space model framework for examining the sensitivity of the observed variable to dimensional changes in the predictor variable. Estimation is based on Kalman filter and Aikaike information criterion (AIC) was adopted to s...
Article
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The paper examined the outlook of Nigerian stock exchange (NSE) in relation to cross exchange rates and COVID-19 global pandemic. The monthly data sets on All-shares index (ASI), cross rates on US dollar(USEXR) and UK pound sterling(UKEXR) covered the period of 2008 to 2020. Auxiliary autoregressive order three (AAR(3)) order of integration test (O...
Article
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Understanding the seasonal epidemiology of diarrhoea, malaria and pneumonia relative to climatic factors is the thrust of the study. Empirical monthly data sets used covered the period of 2012M1-2019M12. Graphical exploration, methods of seasonal variability and Chi-square test of homogeneity were employed. The results showed that diarrhoea, malari...