Browsing Research and Publications by Author "Simwa, Richard Onyino"
Now showing items 1-4 of 4
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Modeling Stock Returns Volatility Using Regime Switching Models
Kaweto, Kalovwe, Sebastian; Mwaniki, Joseph Ivivi; Simwa, Richard Onyino (MksU Press, 2021-06)This paper seeks to model the dynamic relationship between stock market returns, volatility and trading volume in both developed and emerging stock markets. Modeling stock returns volatility has a tremendous reflection ... -
On Derivation of the Probability of Occurrence of an Epidemic with Application to HIV/AIDS Spread Given Tuberculosis Co-infections in the Presence of Treatment
Simwa, Richard Onyino; Muhati, Nelson Lwoyelo; Chikamai, Lucy (Science Journal of Applied Mathematics and Statistics, 2017)Human Immunodeficiency Virus (HIV) and Mycobacterium Tuberculosis (TB) infections are two major world’s public health problems especially in developing countries. Worldwide, 13% of TB cases are estimated to be co-infected ... -
On Local Linear Regression Estimation of Finite Population Totals in Model Based Surveys
Kikechi, Conlet Biketi; Simwa, Richard Onyino; Pokhariyal, Ganesh Prasad (American Journal of Theoretical and Applied Statistics, 2018)In this paper, nonparametric regression is employed which provides an estimation of unknown finite population totals. A robust estimator of finite population totals in model based inference is constructed using the procedure ... -
Results on Robust Model Based Estimation in Finite Populations
Kikechi, Conlet Biketi; Simwa, Richard Onyino; Pokhariyal, Ganesh Prasad (MksU Press, 2021-06)In this article, we present results on nonparametric regression for estimating unknown finite population totals in a model based framework. Consistent robust estimators of finite population totals are derived using the ...