International Research Journal of statistics and Mathematics

Articles

• INTERVENTION ANALYSIS OF MEXICAN PESO TO NIGERIAN NAIRA EXCHANGE RATES DURING NIGERIA'S ECONOMIC RECESSIONS

  Ngozi Uchenna Nwachukwu

  Modelling the Mexican Peso to the Nigerian Naira exchange rates with the standard Box-Jenkins ARIMA model in the presence of external events might be misleading and generating forecasts from such model may be unreliable. This study posits that the exchange rate between Mexican Peso and Nigerian

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• A MATHEMATICAL STUDY OF COVID-19 EPIDEMICS: THE ROLE OF FEAR OF INFECTION

  Samuel Oluwaseun Akinyemi , Fatimah Adebimpe Olowu

  The fear associated with an infectious disease plays a major role in the management of the infectious disease. Thus, this study tried to assess the impact of fear of infection on the spread of COVID-19 using a mathematical modelling approach. The model considered was shown to have two equilibria

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• MODELING NIGERIAN NARROW MONEY AND QUASI-MONEY USING BAYESIAN VECTOR AUTOREGRESSIVE APPROACH

  Ifeoma Blessing Ijeoma

  This study examines the application of Bayesian Vector Autoregressive model in modeling Nigerian narrow money and quasi money as a guide for monetary policy, using monthly data from 2015 - 2022. The objectives include to; model and estimates the interaction between Nigerian narrow money and

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• A MEDIAN-BASED APPROACH TO FISHER’S TEST: OVERCOMING THE INFLUENCE OF OUTLIERS IN STATISTICAL ANALYSIS

  Chigozie Ugochukwu Okeke , Amarachi Nkechi Igwe

  The study considered Median based Fisher’s Test: An alternative to Fishers’ Least Significant Difference in the presence of outlier for interval data. It started with running outlier test by using Grubbs method and analysis of variance for three population samples were carried out. In the

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