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Research Articles (Statistics): Recent submissions
Now showing items 401-420 of 487
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(CRIMSA, 2015)The reality of rape as a direct form of contact crime remains deeply entrenched in South African communities, despite numerous efforts from various governmental stakeholders to curb this heinous crime. The Criminal Law ...
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(Health and Medical Publishing Group, 2016-03)BACKGROUND : Communication delays are the most common impairment in early childhood and have a negative effect on long-term academic, psychological and social development. Baseline prevalence of communication delays or ...
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(AOSIS Open Journals, 2015)Noncentral distributions form an integral part of statistical inference. For example, the noncentral chisquare distribution is particularly useful as it represents the sampling distribution of the sample variance from ...
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(Elsevier, 2016-05)OBJECTIVE : To identify and describe predictors of pediatric cochlear implantation outcomes in a South African population. METHODS : A retrospective study of 301 pediatric cochlear implant (CI) recipients from five CI ...
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(BioMed Central, 2015)BACKGROUND : Strokes are commonly preceded by transient ischemic attacks (TIAs). TIA is often associated with metabolic syndrome (causing chronic inflammation), resulting in a proinflammatory- and procoagulantenvironment. The ...
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(South African Statistical Association, 2015)Microarray experiments help scientists to study the expression level of thousands of genes simultaneously. These experiments have many design challenges, such as, for example, which mRNA samples should be co-hybridized ...
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(Southern African Institute for Industrial Engineering, 2015-08)A carefully done Phase I analysis is a vital part of an overall statistical process control and monitoring regime. Distribution-free control charts can play a useful role in this analysis, as a parametric model assumption ...
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(Wiley, 2015-06)In many situations, the times between certain events are observed and monitored instead of the number of events particularly when the events occur rarely. In this case, it is common to assume that the times between events ...
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(Taylor and Francis, 2015-09)For the multivariate elliptical model subjective Bayesian estimators of the location vector and some functions of the characteristic matrix with the normal-inverse Wishart and the normal-Wishart as prior, respectively, are ...
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(Taylor & Francis, 2014-07)Runs-rules are typically incorporated in control charts to increase their sensitivity to detect small process shifts. However, a drawback of this approach is that runs-rules charts are unable to detect large shifts quickly. ...
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(Future Medicine, 2015-08)AIM : To align predicted and measured CYP2C19 phenotype in a South African cohort. MATERIALS AND METHODS : Genotyping of CYP2C19*2, *3, *9, *15, *17, *27 and *28 was performed using PCR-RFLP, and an Activity Score (AS) ...
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(Wiley, 2015-02)Mukherjee and Chakraborti1 proposed a single distribution-free (nonparametric) Shewhart-type chart based on the Lepage2 statistic for simultaneously monitoring both the location and the scale parameters of a continuous ...
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(Health and Medical Publishing Group, 2015)BACKGROUND. Studies investigating the relationship between exercise and haemodynamic regulation conducted in older caucasian and black African populations suggest that lifestyle modification is effective in the management ...
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(PeerJ, 2015)Estimating the risk, P(X> Y), in probabilistic environmental risk assessment of nanoparticles is a problem when confronted by potentially small risks and small sample sizes of the exposure concentration X and/or the ...
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(Wiley, 2014-04)The performance of attributes control charts (such as c and np charts) is usually evaluated under the assumption of known process parameters (i.e., the nominal proportion of nonconforming units or the nominal number of ...
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(South African Statistical Association, 2015-03)The risk performances, under the symmetric squared error loss function, of the estimators of the regression coefficients after a preliminary test for serial correlation have been widely investigated in the literature. ...
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(Springer, 2016-03)There is a dearth of literature on the extent of fetal or newborn abandonment or “dumping” and the medico-legal investigation procedures these cases require. This is despite the fact that these occurrences are a world-wide ...
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(Taylor and Francis, 2014-09)In this article, the preliminary test estimator is considered under the BLINEX loss function. The problem under consideration is the estimation of the location parameter from a normal distribution. The risk under the ...
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(Routledge, 2015-04)In this paper, an integral representation for the density of a matrix variate quaternion elliptical distribution is proposed. To this end, a weight func- tion is used, based on the inverse Laplace transform of a function ...
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(AOSIS OpenJournals, 2014)Statistical consulting is regarded as one of the most challenging aspects of statistics. It entails the analysis of data for the purpose of deriving solutions to research problems presented by a client. This presentation ...
Now showing items 401-420 of 487