Browsing by Author "Job, O."
Now showing 1 - 18 of 18
Results Per Page
Sort Options
Item An Analysis of the Gender Distribution in Nigeria(Faculty of Physical Sciences and Faculty of Physical Sciences, University of Ilorin, Ilorin, Nigeria, 2016) Sanni, O.O.M.; Abidoye, A.O.; Ikoba, N.A.; Job, O.The gender distribution in Nigeria from early education up till the highest levels of decision-making is explored in this study. The objectives were to: examine the progressionin the gender distribution from early education to the high decision-making positions; test for gender parity in education and some sub-divisions of the labour force in Nigeria, and in cases where there are disparities, to ascertain the degree of such disparities based on the 35% benchmark for females, set out in various global and national protocols. Data was elicited from several sources covering education, public service, politics and the judiciary. Tests of hypothesis were carried out to test for gender parity in education and to ascertain the level of attainment of the minimum threshold in other segments of the population. The gender progression curve was also presented to give a graphical overview of the movement of the gender distribution. Our results show that while progress has been made in bridging the gender gap in education, disparities still exist in other sectors. The female population in the lower and middle level manpower positions significantly exceed the 35% benchmark,while the female proportion in the high positions remains very low, under 10%.Item An Analysis of the Gender Distribution in Nigeria.(Faculty of Physical Sciences and Faculty of Life Sciences, University of Ilorin, Nigeria, 2016-08-01) Sanni, O. O. M.; Ikoba, N. A.; Abidoye, A. O.; Job, O.The gender distribution in Nigeria from early education up till the highest levels of decision-making is explored in this study. The objectives were to: examine the progression in the gender distribution from early education to the high decision-making positions; test for gender parity in education and some subdivisions of the labour force in Nigeria, and in cases where there are disparities, to ascertain the degree of such disparities based on the 35% benchmark for females, set out in various global and national protocols. Data was elicited from several sources covering education, public service, politics and the judiciary. Tests of hypothesis were carried out to test for gender parity in education and to ascertain the level of attainment of the minimum threshold in other segments of the population. The gender progression curve was also presented to give a graphical overview of the movement of the gender distribution. Our results show that while progress has been made in bridging the gender gap in education, disparities still exist in other sectors. The female population in the lower and middle level manpower positions significantly exceed the 35% benchmark,while the female proportion in the high positions remains very low, under 10%.Item Developing a General Consistent Standard Error Estimator under Varying Strengths of Heteroscedasticity(Faculty of Physical Sciences, University of Ilorin, 2015) Job, O.; Oyejola, B. A.In econometric studies involving cross-sectional data, the assumption of a constant variance for the disturbance term is a fluke. In consumer budget studies (micro consumption function), the residual variance about the population regression function is very likely to increase with income. Also, in cross-sectional studies of firms the residual variance probably increases with the size of the firm. In a simple linear regression model, the dependent variable Y is explained by Z. Thus we assume y=f(z)+e postulate that . Let . By implication we formulate the assumption about in a rational and fairly general manner. In general, to validate this assumption, it is convenient and quite plausible to specify the form of association , where g is the strength of heteroscedasticity and the lower the strength (magnitude) of g, the smaller the difference between the individual variances. Except when g =0, the model is homoscedastic otherwise generally. This paper developed a general heteroscedasticity consistent standard error (HCSE) estimator using weight related to regressors that characterizes the random error term denoted by HC5. Comparative studies of the developed estimator with the existing HCSE estimators using various strengths of heteroscedasticity on a continuum scale at sample sizes 25, 30, 35, 40, 45, and 50 were implemented. The OLS estimator remains unbiased and the results showed that the developed estimator is indeed a generalization of all the existing HCSE estimators and proved to be consistent and asymptotically efficientItem Effects of Export, Import and Inflation on Output Expansion.(Esxon Publishers, 2005) Olorunpomi, O. T.; Job, O.; Adeyemo, A. K.This paper defines the family of VARs with block exogeneity to reconnoiter the effects of export and import of goods and services, inflation on output expansion within a multivariate cointegration and error correction structure in Nigeria, over the period 1960-2014. The investigation showed that the indicators are I(1) and moderate correlation was observed amongst the indicators; but any correlation with LINF is negative. LP and LEXPGS are block recursive in time series sense at 0.5138 and 0.4232 levels of significance respectively. LP is not influenced by LIMGS, LEXPGS and LINF. Unidirectional causality was detected from LP and LEXPGS to LIMGS and from LIMGS and LEXPGS to LINF. Normalized cointegration coefficients showed that LIMGS and LINF contributed negatively to LP, while LEXPGS contributed positively to LP in the long-run. The static forecasts from our VECM subsequently recover and tracked the trends reasonably well for the periods considered. Our assessment supports the export-led expansion hypothesis which suggests opening native markets to foreign competition in exchange for market access in other countries. Nigeria’s over dependence on crude oil export is treacherousbecause crude oil is a deteriorating benefit with proven fallback which would eventually become exhausted and the impulses of the oil market has resulted in a significant decline in the paychecks because of the exogenously determined price of crude oil. Thus, promoting non-oil export products will bring about a reduction of the nation’s level of dependence on crude oil export.Item Empirical Study of Psychotic Disorder Patients in Nigeria(Federal University Wukari, Taraba State, Nigeria, 2017) Adejumo, A.O.; Ashaka, S.D.; Job, O.; Adeniyi, O.I.; Oguntunde, P.E.; Odetunmbi, O.A.; Adetunji, A.A.A study on psychotic disorder ailment was carried out in this research paper where the target population consists of all patients that has any of the following five psychotic disorders: Menial Brain Dysfunction (MBD); Schizophrenia; Vascular Dementia; Bipolar; and Insomnia. The sample consist of five hundred (500) psychotic patients that were selected from the entire number of psychotic patients in the hospital records (files) from January, 2010 to December, 2014. They were selected based on their peculiar ailments with symptoms of psychotic disorders. The main aim of this paper is to examine the possible existence of association among these psychotic disorders. The specific objectives are to: determine the demographic factors that influence the levels of each of these psychotic disorders; propose appropriate model for each psychotic disorder; and d etermine the level of correct classification using each of these models. We observed that there exist strong association among these psychotic disorders except for MBD and Vascular Demetria. Nearly all the demographic factors under consideration are one way or the other influence the levels of any psychotic disorder except divorce, injury, and genetic. The percentages of correct classification using each of the models proposed ranges between 70.8% and 91.2%.Item ESTIMATION OF ABRIDGED WORK-LIFE EXPECTANCY IN KWARA STATE NIGERIA USING KPEDEKPO’S WORKING LIFE SCHEME(Faculty of Physical Sciences and Faculty of Life Sciences, Univ. of Ilorin, Nigeria, 2016) Adewara, A. A.; Kolawole, A. A.; Job, O.This study was aimed at estimating life and working life expectancies of Kwara State, Nigeria from the construction of life tables using 2006 Nigerian population census figures in line with Kpedekpo’s working life table in Ghana with particular reference to the female working population and also for males. It is imperative to note here that working life table makes do with the working population and survivors at different age groups. The Nigerian 2006 population data was considered for this study due to its comprehensiveness in terms of data gathering where information about labour force was well collated. This study was carried out to estimate the work-life expectancy and expected retirement of Kwara State by Nigeria abridged work-life table. It highlighted the average years and until when a person stay in active service in Kwara State, Nigeria. Also, aimed to predict the working life expectancy and expected retirement age and providing information on length of remaining years at exact age x. It was observed that both the average years lived and average years in working life followed the same trend, starting at high values and decreased as the ages advanced. They both started at high values of 38.03 and 40.49 for the average years lived and average years in working life respectively and eventually decreased as the ages advanced. The average years lived and average years in working life began to synchronize at 30.38 years value down to 2.50 years value for age group 85 and above. The life and working life expectancies in Kwara State, Nigeria started from 55.03 and 57.49 respectively.Item Estimation of Abridged Work-Life Expectancy in Kwara State Using Kpedekpo's Wokring Life Scheme(Faculty of Physical Sciences and Faculty of Physical Sciences, University of Ilorin, Ilorin, Nigeria, 2016) Adewara, A.A.; Kolawole, O.A.; Job, O.This study was aimed at estimating life and working life expectancies of Kwara State, Nigeria from the construction of life tables using 2006 Nigerian population census figures in line with Kpedekpo’s working life table in Ghana with particular reference to the female working population and also for males. It is imperative to note here that working life table makes do with the working population and survivors at different age groups. The Nigerian 2006 population data was considered for this study due to its comprehensiveness in terms of data gathering where information about labour force was well collated. This study was carried out to estimate the work-life expectancy and expected retirement of Kwara State by Nigeria abridged work-life table. It highlighted the average years and until when a person stay in active service in Kwara State, Nigeria. Also, aimed to predict the working life expectancy and expected retirement age and providing information on length of remaining years at exact age x. It was observed that both the average years lived and average years in working life followed the same trend, starting at high values and decreased as the ages advanced. They both started at high values of 38.03 and 40.49 for the average years lived and average years in working life respectively and eventually decreased as the ages advanced. The average years lived and average years in working life began to synchronize at 30.38 years value down to 2.50 years value for age group 85 and above. The life and working life expectancies in Kwara State, Nigeria started from 55.03 and 57.49 respectively.Item An exploratory Study of Number of Children Desired and What Accomplished in Family Settings(University of Sofia, Bulgaria, 2017) Adejumo, A.O.; Taiwo, S.A.; Job, O.; Adeniyi, O.I.; Oguntunde, P.E.; Odetunmbi, O.A.; Akinrefon, A.A.In any family settings, racing children is a big decision that requires serious self-reflecting and communication between couples. In African settings, there is usually a rift in the agreement of the number and the gender of children to be borne by couples; while the man prefers a male child, the wife may prefer a female child instead. The number of children by the couple also determine the kinds of education those children will eventually have later. To this effect, in this research work, we want to study the Man’s proposed and ac-tual number of children; the degree of association in the man’s decision using Quasi symmetry and Homogeneous Agreement model; how well some factors (Age, Religion, Family status, Occupation, Level of education and Ethnic group) influence the number of children; and to know the stopping rule for child bearing by the man. It was observed that 16.2% of the respondents had above the number of children proposed when they stopped bearing children, 21.5% of the respondents had below the number of children proposed when they stopped while 62.3% of the respondents had the exact number of children proposed when they eventually stopped bearing children. We observed that Age and Religion influence the number of children. We also observed that the probability ( p) of having at least one male child is 0.8019 based on the available data. The chance of any newly wedded couple ever having a male child at any trial follows a geometric distribution 3 , 2 , 1 , ) 1981 . 0 )( 8019 . 0 ( ) (1 x x fx. Quasi symmetry model has a better fit for agreement measure than Homogeneous agreement model.Item Female Circumcision in Nigeria, Prevalence and Attitudes(Library and Publication Committee, University of Ilorin, 2012) Abiodun, A.A.; Oyejola, B.A.; Job, O.Nigeria is one of the countries in Africa where female circumcision is widely practiced. Information about the prevalence and attitudes towards its practice and predictors associated with its support were collected from the 2005 National HIV/AIDS and Reproductive Health Survey (NARHS) on females aged 15-49 and males aged 15-64 years. The prevalence of female circumcision is more in the southern part of Nigeria than the Northern part, with South West and South East recording the highest percentages. There is a marked decrease of the practice in the younger age cohorts compared to the older age cohorts. As the level of education increases, the likelihood of supporting the practice of female circumcision reduces and regular use of media of communication such as radio and television is an influential factor against the practice of female circumcision in Nigeria.Item GENERALISED LYNCH MULTIVARIATE REGRESSION ESTIMATORS WITH ft.PARAMETERS OF ORDER 1/n(ICASTOR, India, 2008) Adewara, A. A.; Job, O.; Abidoye, A. O.; Oyeyemi, G.M.In this paper, several authors have proposed ratio type estimators which utilized data from several auxiliary variates that involves the use of unknown weights which have to be estimated but Lynch proposed a multivariate regression estimator when there are two auxiliary variates (x-varaiates) which was found to be better and preferred, even to the conventional mean estimate. In this paper, we proposed multivariate regession estimators with k-parameters of order 1/n as used by Lynch. Two data sets called Populations l and 2 were used to justify this research work. While Population I is based on the total monthly income and total monthly expenditure on food, rent, clothing, transportation and miscellaneous of 86 occupants of Kubwa Federal Housing Authority, Phase lV Estate, Abuja, Nigeria, Population 2 is based on the total monthly income and total monthly expenditure on food, rent, clothing, transportation and miscellaneous of 95 occupants of Gwarinpa Il Estate, Abuja ,Nigeria and it was observed that as ,k-parameters increases, our * multivariate regression estimate becomes smaller and better which makes the highest k-parameter multivariate regression estimator to be preferredItem Generalized Lynch Multivariate Regression Estimators with k-Parameters of Order 1/n(International Center for Advance Studies, India, 2008) Adewara, A. A.; Job, O.; Abidoye, A. O.; Oyeyemi, G. M.; Gali, M. O.; Alabi, O. O.In this paper several authors have proposed ratio type estimator which utilized data from several auxiliary variates that involves the use of unknown weights which have to be estimated but Lynch proposed a multivariate regression estimator when there are two auxiliary variates (x-varaiates) which was found to be better and preferred, even to the conventional mean estimate. In this paper, we proposed multivariate regression estimators with k -parameters of order 1/n as used by Lynch. Two data sets called Populations 1 and 2 were used to justify this research work. While Population I is based on the total monthly income and total monthly expenditure on food, rent, clothing, transportation and miscellaneous of 86 occupants of Kubwa Federal Housing Authority, Phase lV Estate Abuja, Nigeria, Population 2 is based on the total monthly income and total monthly expenditure on food, rent, clothing, transportation and miscellaneous of 95 occupants of Gwarinpa II Estate, Abuja Nigeria and it was observed that as, K-parameters increases, our k multivariate regression estimate becomes smaller and better which makes the highest k -parameter multivariate regression estimator to be preferredItem Modelling of Enugu Monthly Rainfall Using Box and Jenkins Methodology(Tibiscus University of Timisoara, Romania, 2018) Adejumo, A.O.; Oloyede, T.O.; Adejumo, O.A; Oguntunde, P.E.; Odetunmbi, O.A.; Ikoba, N.A.; Job, O.The paper examined the rainfall distribution of Enugu state in Nigeria. Box-Jenkins methodology was used to build ARIMA model to analyze data and forecast for the period of 15 years, from January, 200 2 to December, 2016 and to predict for the future. We observed that the average annual rainfall of Enugu state ranges from 124mm to 179mm. The irregularity in annual rainfall ofEnugu State one and half decades ago is a bit large, indicating that climate stability is high in the state. Different time series models were diagnostically checked, and tested for Enugu state and at last an SARIMA (0, 0, 0) (1, 0, 1)12 model is chosen as the proposed best model. The proposed model was used to forecast two years’ monthly rainfall value for the state. The results indicated that relatively there is a tendency of increasing in trend of future rainfall values in the state.Item Modelling of Enugu Monthly Rainfall Using Box and Jenkins Methodology.(Tibiscus University of Timişoara, România., 2018-06-01) Adejumo, A. O.; Oloyede, T. O.; Adejumo, O. A.; Oguntunde, P. E.; Odetunmibi, O. A.; Ikoba, N. A.; Job, O.The paper examined the rainfall distribution of Enugu state in Nigeria. Box-Jenkins methodology was used to build ARIMA model to analyze data and forecast for the period of 15 years, from January, 2002 to December, 2016 and to predict for the future. We observed that the average annual rainfall of Enugu state ranges from 124mm to 179mm. The irregularity in annual rainfall of Enugu State one and half decades ago is a bit large, indicating that climate stability is high in the state. Different time series models were diagnostically checked, and tested for Enugu state and at last an SARIMA (0, 0, 0)(1, 0, 1)12 model is chosen as the proposed best model. The proposed model was used to forecast two years’ monthly rainfall value for the state. The results indicated that relatively there is a tendency of increasing in trend of future rainfall values in the state.Item Performances of Ordinary and Generalized Least Squares Estimators on Multiple Linear Regression Models with Heteroscedasticity(Akama University, 2016-05) Adejumo, A.O.; Job, O.; Isaac, T.D.; Oyejola, B.A.This paper focuses on the impact of heteroscedasticity on the estimate and variance of model parameters by studying the performances of Ordinary Least Square (OLS) and General Least Square (GLS) estimators in multiple linear regression models with two independent variables only and error term characterized with different magnitudes of heteroscedasticity related to predictors at different sample sizes. This research explored the patterns of the variance estimates offered by the two estimators when data is front with heteroscedasticity. Also the studies explored the situations where concepts of substitute, complementary or joint demands/supply may reflect in the stochastic characterization of the error term. From Monte Carlo simulation studies using R-package the GLS estimator maintains its superiority over the OLS in multiple linear regression models.Item Quantitative Exploration of Factors Influencing Psychotic Disorder Ailments in Nigeria(Elsevier, 2017-07-25) Adejumo, A. O.; Ikoba, N. A.; Suleiman, E. A.; Okagbue, H. I.; Oguntunde, P. E.; Odetunmibi, O. A.; Job, O.In this data article, records on demographic data, family problem issues, as well as results of medical tests from five major classes of psychotic disorder namely: bipolar; vascular dementia, minimal brain dysfunction; insomnia; and schizophrenia, were collected on 500 psychotic patients carefully selected from the pool of medical records of Yaba Psychiatric Hospital, Lagos, Nigeria, for the period of 5 years, between January 2010 and December 2014, were examined. X-squared Statistic was used to examine each of psychotic disorders to identify demographic (age, gender, religion, marital status, and occupation) and family issues (loss of parent, history of such ailment in the family (family status), divorce, head injury, and heredity of such ailment (genetic) factors that influence them. A clear description on each of these psychotic disorders (bipolar; vascular dementia, minimal brain dysfunction (MBD), insomnia and Schizophrenia) was considered separately using tables and bar diagrams. Data analysis results are as follows: firstly, 40.2%, of the 500 psychotic patients tested positive to bipolar, 40.6% to insomnia, 75.0% to schizophrenia, 43.6% to MBD and 69.2% to vascular dementia. Secondly, female patients were more prone to all the psychotic indicators than their male counterpart except in MBD. Thirdly, the oldest age group (>60 years) is more prone to bipolar and insomnia ailments, while the mid age group (30 – 60 years) is prone to schizophrenia and vascular dementia, and the youngest group (< 30 years) is prone to MBD. Lastly, the factors that influence the ailments are listed: bipolar (age, occupation, marital status, divorce, and spiritual consultation); insomnia (age, occupation, marital status, divorce, and spiritual consultation); schizophrenia (age, occupation, religion, marital status, hereditary, and divorce); MBD (gender, age, occupation, and marital status); and vascular dementia (history of the ailment and spiritual consultation). Bipolar and insomnia are influenced by the same set of factors, which implies that any patient having one is most likely to be at risk of having the other.Item Quantitative exploration of factors influencing psychotic disorder ailments in Nigeria(ELSEVIER INC, 2017) Adejumo, A.O.; Ikoba, N.A.; Suleiman, E.A.; Okagbue, H.I.; Oguntunde, P.E.; Odetunmbi, O.A.; Job, O.In this data article, records on demographic data, family problem issues, as well as results of medical tests from five major classes of psychotic disorder namely: bipolar; vascular dementia, minimal brain dysfunction; insomnia; and schizophrenia, were collected on 500 psychotic patients carefully selected from the pool of medical records of Yaba Psychiatric Hospital, Lagos, Nigeria, for the period of 5 years,between January 2010 and December 2014, were examined.X-squared Statistic was used to examine each of psychotic disordersto identify demographic (age, gender, religion, marital status, and occupation) and family issues (loss of parent, history of such ailment in the family (family status), divorce, head injury, and heredity of such ailment (genetic) factors that influence them. A clear description on each of these psychotic disorders (bipolar; vascular dementia,minimal brain dysfunction (MBD), insomnia and Schizophrenia) was considered separately using tables and bar diagrams. Data analysis results are as follows: firstly, 40.2%, of the 500 psychotic patients tested positive to bipolar, 40.6% to insomnia, 75.0% to schizophrenia,43.6% to MBD and 69.2% to vascular dementia. Secondly, female patients were more prone to all the psychotic indicators than their male counterpart except in MBD. Thirdly, the oldest age group (460 years) is more prone to bipolar and insomnia ailments, while the mid age group (30–60 years) is prone to schizophrenia and vascular dementia, and the youngest group (o30 years) is prone to MBD. Lastly, the factors that influence the ailments are listed:bipolar(age, occupation, marital status,divorce,and spiritual consultation);insomnia (age,occupation, marital status,divorce,and spiritual consultation);schizophrenia(age, occupation, religion, marital status, hereditary, and divorce); MBD(gender, age, occupation, and marital status); and vascular dementia(history of the ailment and spiritual consultation). Bipolar and insomnia are influenced by the same set of factors, which implies that any patient having one is most likely to be at risk of having the otherItem A Study of Prominent Crimes in Kwara State Nigeria(University of Lome, Togo., 2017-06-25) Adejumo, A. O.; Hammed, A. A.; Ikoba, N. A.; Job, O.; Adeniyi, I. O.; Oguntunde, P. E.; Odetunmibi, O. A.; Akinrefon, A. A.Nigeria has been experiencing high rate of criminal activities where crimes are being carried out with more perfect and sophistication for over ten years now. The recent amongst are the insurgent called Boko Haram who believed that western civilization of education for all is unlawful and the Avengers also called Militants in the Niger Delta part of Nigeria who believed the Government is cheating their people in that region. The data for this study contained records of different crime committed in Kwara states between 2004 and 2014. This research work is to: identify the prominent crime types; determine the association that existed between pairs of crime types; reduce the dimension of the data using statistical tools; and classify the crime types in different colonies. Principal Component, Biplot, correlation analysis and other statistical tools were utilized in this paper. The pair wise correlation test of significance table indicated that, out of the 45 pair wise correlations, only 6 are significant at 5% and these include; homicide-suicide, homicide-robbery, suicide-robbery, rape-theft, assault-broken, broken-theft and broken-unlawful. We observed that crime types such as assault, unlawful, broken and theft can be grouped together as the most frequent crimes committed; the prevailing cases occurred in the year 2006 and 2008. We also observed that, suicide, homicide and robbery formed the next group, which are more frequent in the year 2009, 2010 and 2011. Kidnapping and arson are not frequently committed but they are more prominent in the year 2012 and 2013. Rape formed the lowest standalone crime type committed and also less frequent with no year of prevailing occurrence.Item A Study of Prominent Crimes in Kwara State, Nigeria(de l'Universite de Lome, 2017) Adejumo, A.O.; Hammed, A.A.; Ikoba, N.A.; Job, O.; Adeniyi, O.I.; Oguntunde, P.E.; Odetunmbi, O.A.Nigeria has been experiencing high rate of criminal activities where crimes are being carried out with more perfect and sophistication for over ten years now. The recent amongst are the insurgent called Boko Haram who believed that western civilization of education for all is unlawful and the Avengers also called Militants in the Niger Delta part of Nigeria who believed the Government is cheating their people in that region. The data for this study contained records of different crime committed in Kwara states between 2004 and 2014. This research work is to: identify the prominent crime types; determine the association that existed between pairs of crime types; reduce the dimension of the data using statistical tools; and classify the crime types in different colonies. Principal Component, Biplot, correlation analysis and other statistical tools were utilized in this paper. The pair wise correlation test of significance table indicated that, out of the 45 pair wise correlations, only 6 are significant at 5% and these include; homicide-suicide, homicide-robbery, suicide-robbery, rape-theft, assault-broken, broken-theft and broken-unlawful. We observed that crime types such as assault, unlawful, broken and theft can be grouped together as the most frequent crimes committed; the prevailing cases occurred in the year 2006 and 2008. We also observed that, suicide, homicide and robbery formed the next group, which are more frequent in the year 2009, 2010 and 2011. Kidnapping and arson are not frequently committed but they are more prominent in the year 2012 and 2013. Rape formed the lowest standalone crime type committed and also less frequent with no year of prevailing occurrence.