The importance of robust variable selection and regularization as solutions to the collinearity influential high leverage points’ adverse effects in a quantile regression (QR) setting cannot be overemphasized, just as ...

Policy lapse is a vital component in life insurance as it affects future pricing and impacts the solvency of the life insurer. Accurate prediction of lapse will help the insurers to implement personalised retention strategies ...

The underperforming agricultural sector in Sub-Saharan Africa (SSA) has left African countries with insufficient food production in the face of challenges related to climate change, diseases and increasing population ...

Abstract Background The distribution of HIV is not uniform in Ethiopia with some regions recording higher prevalence than others. However, reported regional HIV prevalence ...

The conventional approach in determining HIV risk factors fails to consider the influence behavioural and biological factors may have when modelled jointly. This study investigates the extent of influence behavioural and ...

Background. South Africa (SA) is experiencing an epidemiological transition as a result of sociodemographic and lifestyle changes. This process is leading to an increase in non-communicable diseases, which in turn may ...

Double sampling procedure is adapted from a statistical branch called acceptance sampling. The first Shewhart-type double sampling monitoring scheme was introduced in the statistical process monitoring (SPM) field in 1974. ...

In this paper, Burr-type XII X¯ synthetic schemes are proposed as an alternative to the classical X¯ synthetic schemes when the assumption of normality fails to hold. First, the basic design of the Burr-type XII X¯ synthetic ...

Abstract Background The field of acceptability of health services is emerging and growing in coherence. But there are gaps, including relatively little integration of elements ...

Abstract Background HIV has the most serious effects in Sub-Saharan African countries as compared to countries in other parts of the world. As part of these countries, Ethiopia ...