Browsing Statistics by Title
Now showing items 41-60 of 119
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Hierarchical multiple linear regression : a comparative analysis of classical and Bayesian approach.
(2017)Low birth weight is a problem in Africa due to its contribution to high infant mortality. Most studies on low birth weight have neglected the use of Bayesian methods in analysis of medical data. This study aims to investigate ... -
Identifying factors associated with smoking in Gauteng in the presence of missing data.
(2014)Smoking still remains one of the leading preventable causes of death in South Africa. It increases the chances of lung diseases such as emphysema, chronic bronchitis and many other diseases. The current research aims to ... -
The impact of semen exposure on cytokine response and bacterial vaginosis in the female genital tract.
(2018)Background: Diverse microbial communities and inflammatory cytokine responses in the lower female genital tract (FGT) are closely associated with increased human immunodeficiency virus (HIV-1) risk, possibly through ... -
Imputation for nonresponse using the Annual Financial Statistics Survey.
(2011)In this dissertation, we focus on the Annual Financial Statistics (AFS) survey. This is a survey conducted by Statistics South Africa, the national statistics office of South Africa. The main purpose of this survey is ... -
Inference from finite population sampling : a unified approach.
(2007)In this thesis, we have considered the inference aspects of sampling from a finite population. There are significant differences between traditional statistical inference and finite population sampling inference. In the ... -
Investigating the spatial distribution of diabetes in Africa using both classical and Bayesian approaches.
(2017)Abstract available in PDF file. -
Investigation of fertilizer usage in Malawi within the rural livelihood diversification project using generalized linear models and quantile regression.
(2013)Malawi’s economy relies heavily on agriculture which is threatened by declines in soil fertility. Measures to ensure increased crop productivity at household level include the increased use of inorganic fertilizers. To ... -
Likelihood based statistical methods for estimating HIV incidence rate.
(2013)Estimation of current levels of human immunodeficiency virus (HIV) incidence is essential for monitoring the impact of an epidemic, determining public health priorities, assessing the impact of interventions and for ... -
Linear model diagnostics and measurement error
(2010-09-07)The general linear model, the weighted linear model, and the generalized linear model are presented in detail. Diagnostic tools for the linear models are considered. In general the standard analysis for linear models does ... -
Longitudinal analysis of the effect of climatic factors on the wood anatomy of two eucalypt clones
(2010)Eucalypt trees are one of tree species used for the manufacturing of papers in South Africa. The manufacturing of paper consists of cooking the wood with chemicals until obtaining a pulp. The wood is made of different ... -
Longitudinal analysis of the effect of climatic factors on the wood anatomy of two eucalypt clones.
(2010)Eucalypt trees are one of tree species used for the manufacturing of papers in South Africa. The manufacturing of paper consists of cooking the wood with chemicals until obtaining a pulp. The wood is made of different ... -
Longitudinal survey data analysis.
(2006)To investigate the effect of environmental pollution on the health of children in the Durban South Industrial Basin (DSIB) due to its proximity to industrial activities, 233 children from five primary schools were considered. ... -
The management of missing categorical data : comparison of multiple imputation and subset correspondence analysis.
(2015)Missing data is a common problem in research and the manner in which this ‘missingness’ is managed, is crucial to the validity of analysis outcomes. This study illustrates the use of two diverse methods to handle, in ... -
Mean-square fractional calculus and some applications.
(2012)The fractional calculus of deterministic functions is well known and widely used. Mean-square calculus is a calculus that is suitable for use when dealing with second-order stochastic processes. In this dissertation we ... -
Measuring poverty and child malnutrition with their determinants from household survey data.
(2016)The eradication of poverty and malnutrition is the main objective of most societies and policy makers. But in most cases, developing a perfect or accurate poverty and malnutrition assessment tool to target the poor ... -
Meta-analysis of time to seizure relapse after a post-operative epilepsy surgery.
(2020)Epilepsy is a common disease world-wide whose suggested treatment vary from surgical to non-surgical. Although surgical treatments may be commonly recommended and successful in pharmacoresistant epilepsy for patients ... -
Meta-analysis with application to estimating combined estimators of effect sizes in biomedical research.
(2018)Meta-analysis is a statistical analysis that combines results from different independent studies. In meta-analysis a number of statistical methods are currently used for combining effect sizes of different studies. The ... -
Modeling environmental factors affecting the growth of eucalypt clones.
(2009)Tree growth is influenced by environment and genetic factors. The same tree growing in different areas will have different growth patterns. Trees with different genetic material, e.g. pine and Eucalyptus trees, growing ... -
Modeling financial data using the multivariate generalized hyperbolic distribution and copula.
(2015)Financial data usually possess some characteristics, such as volatility clustering, asymmetry, heavy and semi-heavy tails thus, making it difficult, if not impossible, to use Normal distribution to model them. Statistical ... -
Modeling the factors affecting cereal crop yields in the Amhara National Regional State of Ethiopia.
(2010)The agriculture sector in Amhara National Regional State is characterised by producing cereal crops which occupy the largest percentage (84.3%) of the total crop area cultivated in the region. As a result, it is imperative ...