Research Papers/Topics in Statistics

Influence Of Human Resource Management Practices On Growth Of Sacco Societies In South Rift Region

ABSTRACT Human Resource Management (HRM) practices will continually attract the attention of researchers in pursuit of better ways to counter the emerging challenges that can undermine the growth of the organizations. The research will be carried out to examine the influence of human resource management practices on the growth of Savings and Credit cooperative societies (Sacco societies) in South Rift Region. The study will examine the relationship among the factor variables which are; select...

Determination Of Actuarial Costing On Non-Remitted Contribution For A Defined Contribution Scheme

ABSTRACT Income accrued from Retirement Benets Fund is an exceptionally important component of every working individual's life cycle globally. The major sources of such income are: unfunded state pensions; funded private pensions; mandatory schemes; and post-retirement work. The urgency and importance has made many countries to give it considerable attention by enacting enabling laws and policies to safeguard it. In Kenya, steps have been made by establishing the National Social Security Fund...

A Mathematical Model For The Optimal Control Of Trypanosomiasis In A Cattle Population.

Abstract Trypanosomiasis is a debilitating disease which is a major constraint to livestock production in sub-Saharan Africa. It leads to loss of productivity in animals and without treatment it is frequently fatal. The economic and social repercussions it causes in areas where it is endemic, makes its control a priority operation. In this study we formulate three models; a basic model to understand the transmission dynamics of the trypanosomiasis in a cattle population, a model with treatmen...

Discriminant Analysis Of Factors That Have Led To Slow Decline Of Hiv/Aids Prevalence: Case Study Of Maseno

ABSTRACT HIV/AIDS epidemic has endangered the development of countries in this new century, presenting one of the greatest challenges of this generation and threatening human development. To accomplish an efficient response requires many researches to find long term solutions. Though its prevalence has declined in the past years, it is still very high in particular regions due to various factors. This research analysed major factors associated with HIV/AIDS prevalence in Maseno Community. If ...

Arima Model For Forecasting Of Monthly Rainfall And Temperature In The Lake Victoria Basin

Abstract Economic activities in Lake Victoria Basin such as agriculture, sh- ing, mining and transportation depend's heavily on the climatic conditions of the Lake and its Basin. Global climatic change caused by Greenhouse Gas emission (GHG) has resulted in a disruptive and erratic weather pattern for these economic activities. This unpre- dictable weather variations is responsible for loss of life and destruc- tion of property. The primary cause of this negative impact is lack of a reliable ...

Statistical Distributions And Modelling Of GPS-Telemetry Elephant Movement Data Including The E_Ect Of Covariates

Abstract In this thesis, I investigate the application of various statistical methods towards analysing GPS tracking data collected using GPS collars placed on large mammals in Kruger National Park, South Africa. Animal movement tracking is a rapidly advancing area of ecological research and large amount of data is being collected, with short sampling intervals between successive locations. A statistical challenge is to determine appropriate methods that capture most properties of the data is...

Statistics Project Review Of Methods Of Estimating Parameters In Nonlinear Mixed-Effects (Nlme) Models

Abstract. This study is a critical review of theoretical issues that underline the linear mixed effects (LME) and nonlinear mixed effects (NLME) models. These two areas are revisited under maximum likelihood and restricted maximum likelihood estimation frameworks. We also review methods of estimating parameters in both linear and nonlinear mixed effects models. In the case of LME, we consider different ways of developing the likelihood estimators, key among these methods are the “pseudo-dat...

SPATIAL ANALYSIS AND MAPPING OF INFANT MORTALITY IN KENYA ON THE BASIS OF DEMGRAPHIC AND HEALTH SURVEY DAT

Abstract This study set out to examine and map the spatial variation of infant mortality in Kenya. We used data from Demographic and Health Survey (DHS) database to explore spatial variation. Generalized linear mixed inodel(GLMM) with Enumeration Areas (EA) specific random effects was used to assess the effects of geographical heterogeneity and other covariates. The model based Geostatistical methods were used to quantify the spatial variations of the observations using the variograms and fit...

Hierarchical Logistic Regression Model For Multilevel Analysis : An Application On Use Of Contraceptives Among Women In Reproductive Age In Kenya

ABSTRACT Contraception allows women and couples to have the number of children they want, when they want them. This is everybody’s right according to the United Nations Declaration of Human Rights. Use of Contraceptive also reduces the need for abortion by preventing unwanted pregnancies. It therefore reduces cases of unsafe abortion,one of the leading causes of maternal death worldwide.According to Mohammed ,in 2012 an estimated 464,000 induced abortions occurred in Kenya. This translates ...

Application Of Life Table Model In Studying Progress Of Public Primary School Pupils In Migori Sub County, Kenya

ABSTRACT Education progress plays a very important role in determining the future of a pupil and even in planning for the schools and education sector as a whole. Primary Education forms the basis of implementing Poverty Reduction Strategy by the government through the acquisition of basic literacy skills, which increases opportunities for employment and ability to be self-reliant, hence the need to monitor the pupils general progress from the time of entry in class one to graduation after th...

Application Of Auto-Regression Integrated Moving Avaerage Model To Forecast Tea Prices At Mombasa Tea Auction Center In Kenya

ABSTRACT Tea production is the mainstay of many people in Kenya. The contribution of tea sector to the Kenyan economy is enormous as it accounts for about 4% of Gross Domestic Product (GDP). Favourable product prices act as a trigger for any commercial activity over time and also suggest sustainability of the activity. Tea is a very significant crop in Kenya and it is one of the major agricultural exports of the country. However, the industry has experienced many challenges such as stiff comp...

Forecasting Foreign Exchange Rates In Kenya Using Time Series: A Case Of Usd/Kes Exchange Rates

ABSTRACT In October 1993, Kenya adopted a floating exchange rate system where the exchange rates are determined by forces of demand and supply for the local currency. Exchange rate forecasts are necessary to evaluate the foreign denominated cash flows involved in international transactions. Therefore exchange rate forecasting is important to evaluate the benefits and risks attached to the international business environment. This study therefore sought to fit a Seasonal Autoregressive Intergra...

A Delayed Vaccination Model For Rotavirus

ABSTRACT Rotavirus is the most common cause of severe gastroenteritis infection in infants and young children, occurring even with very high standard of hygiene. The disease spreads by contact with infected faeces and might also be transmitted through faecally-contaminated: food, water and respiratory droplets. Rota teq and Rotarix are the two licensed oral vaccine intervention for rotavirus. However, it takes time for the development of vaccineinduced immunity to complete, hence the need to ...

Analytic Solutions Of Call And Put Options Of Nonlinear Black-Scholes Equation With Transaction Costs And Price Slippage

Abstract A nonlinear Black-Scholes Partial Dierential Equation whose nonlinearity is as a result of transaction costs and a price slippage impact that lead to market illiquidity with feedback eects was studied. Most of the solutions obtained in option pricing especially using nonlinear equations are numerical which gives approximate option values. To get exact option values, analytic solutions for these equations have to be obtained. Analytic solutions to the nonlinear Black-Scholes Partial D...

An Analysis Of Patient Flow Using Markov Chains: A Case Of Kapsabet County Referral Hospital

ABSTRACT Hospital is an essential welfare of society. It provides management of illnesses through treatment and prevention interventions by medical and health professionals. Due to growing population and rise in chronic diseases, there is an increased demand for health care services. This causes congestion and overcrowding in most hospitals. Hospital overcrowding is a major problem to patients, hospital administration and to the general health workers. Hospitals in many jurisdictions struggle...


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