ABSTRACT Multiple linear regression analysis may be used to describe the relation of a variable (response variable) based on the score of several other variables (independent variables). The least squares estimate of the regression coefficients are unsteady in that replicate samples can give widely differing values of the regression coefficients if the predictor variables are highly correlated. Ridge and Lasso regression analysis are regularization techniques for eliminating the effect of hig...
ABSTRACT The poor are not evenly distributed within the country and they do not share the same socio-economic and demographic characteristics. It is against this background that analysis of the characteristics that differentiate the poor from the non-poor in Ghana cannot be underestimated. Poverty indicators make it possible to analyze the likely determinants and are, therefore, essential for formulating policy interventions that may contribute directly or indirectly to its alleviation. This ...
ABSTRACT The face is the most widely used part of the human body for recognition. Automated face recognition is all about transferring an inherent trait in humans into machines by supplying the machine with enough information. Face recognition has gained much attention over the past few decades and it is used in numerous application areas which includes but not limited to information privacy, law enforcement and assess management. The study presents an assessment of the Discrete Wavelet Trans...
ABSTRACT Academic performance is vital in education as it helps in the selection and placement of students from one stage to the other on academic ladder. However, academic performance of students in the second cycle institutions has continually declined over the last decade. In 2014, approximately 28 percent of the students who sat for the WASSCE had grade A1 to C6 in all the core subjects. This study identifies statistically significant factors that influence students’ academic performanc...
ABSTRACT With the emergence of the current financial crisis, important advances have been made in credit risk management. Inherent in this management process is the assessment of creditworthiness routine which subsequently leads to a credit granting decision. This study is aimed at developing a statistical model that can be used to ascertain credit assessment and to predict the probability of default of firms seeking credit from a Ghanaian commercial bank. Subsequently, an attempt was made to...
ABSTRACT “Internet banking” is a product offered by commercial banks to enable clients carry out banking transaction at their convenience and at any time. It enables banks to reduce operational cost by reducing the cost of stationary and also number of staff. However, clients of commercial banks in Ghana still prefer conducting transaction at the branches of the banks rather than signing on to internet banking. This is evident in the queues by clients in commercial banks in order to carry...
ABSTRACT This thesis present the fundamental concept of the non-parametric method which is the Kaplan-Meier and Log-rank test and the Parametric Proportional Hazard models which are Exponential, Weibull and the Gompertz proportional model. The paper applied survival methods to breast cancer patients data from the Korle Bu teaching and Effia Nkwanta Hospital. The main objective is to become familiar with the risk factors associated to early death of breast cancer patients. The proportionality...
ABSTRACT The objective of this research was to identify the risk factors that influence loan default of customers in the microfinance sector and to develop model that links these factors to credit default for any customer in the sector. Data from a microfinance institution based in Accra was used. A binomial logistic regression analysis was fitted to a data of 472 customers who were granted credit from January 2011 to December 2012. Based on the Wald criterion, it was realized that among the...
ABSTRACT Survival analysis has proven to be a major breakthrough in the analysis of time to event. The methodologies surrounding the concept of Survival Analysis seems laudable to most researchers especially in the medical, engineering, agricultural and actuarial field. Kaplan-Meier method which is applicable for estimating the survival function, log-rank test used for comparing the equality of two or more survival distributions, and the Cox proportional hazard model for inspecting the covari...
ABSTRACT The study objectives are to determine the key factors that may be accounting for birthweight of infants, estimate its distribution, prevalence and proposes a statistical model that can be useful in epidemiological studies in Ghana. Both estimation (Linear) and classification (Logistic) analysis was conducted using data from GDHS. Covariates found to statistically associated with newborn’s weight are gender, size of child at birth, region, wealth index, birth order, total number ch...
ABSTRACT Energy from hydro-electricity is the cheapest form of power generation in this country. The Volta River Authority can however generate power optimally if water levels within the dam is between 240ft and 280ft. This is not always the case, since the only source of water for the dam is rainfall, which is also random and dependent on weather conditions. Knowledge of the water level within any month of the year will therefore be very useful in the production, distribution and management ...
ABSTRACT Over the years, measuring inequality based on the distribution of income has been a major concern to economist. Inequality has had a broader concept than poverty in that it is defined over the entire population not just for the portion of the population below a certain poverty line. The Gini coefficient satisfy many desirable properties of a good measure of inequality such as mean independence, population size independence, symmetry, and Pigou-Dalton Transfer sensitivity. The empiric...
ABSTRACT Patient‟s duration of stay at the hospital is one useful indicator many employ to assess the performance and efficiency of healthcare provided by hospitals and healthcare units. Also, patients‟ LOS and inpatient mortality are two interconnected health issues with complex outcomes, and studying the relationship between the two is not an easy task. This study therefore employed non-parametric and semi-parametric statistics in modeling patients‟ survival time to death using secon...
ABSTRACT The study analyzed imports revenue contributions from six high-risk commodities obtained from the Inspection and Control Services Company at Tema port. The six items were Auto-parts, Rice, Computers and Accessories, Household Electricals, Poultry Products and Used Clothing. The data covered five years from 2004 to 2008. The objective was to obtain revenue estimates of these six items. Another objective was to provide forecasts of yearly total revenue based on the five years revenue d...
ABSTRACT The Akosombo dam is Ghana‟s main source of energy. Considering the current increase in the demand for electricity in the country, where an increase in demand implies more pressure on the dam, it is therefore very important to investigate the tail behaviour of the water levels of the dam. This is necessary because the level of water in the dam determines the amount of electricity generated. The study investigated this problem using Univariate Extreme Value Theory. Both the Generaliz...