Browsing Journal Articles by Author "Ayubu, Anapapa O."
Now showing items 1-16 of 16
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Analysing Four Factor Second Order Models Using Response Surface Methodology with Application in Germination of Melia volkensii
Ayubu, Anapapa O.; Koske, J. K.; Mutiso, J. M. (2017-12)Second order models are useful in situations where there are curvilinear effects present in the true response function. Such models have real life applications in a wide variety of fields such as agriculture, biology, and ... -
An Analysis of the Performance of Students in Seven Statistics Units at University Of Eldoret
Ayubu, Anapapa O. (2017-10)This study analyzed the performance in seven statistics units of students who were admitted for a Bachelor of Science (Applied Statistics with Computing) course at University of Eldoret, Kenya in 2012. The units were taught ... -
Application of Mixture Experiments in Poultry Feed Formulation
Sitienei, C. M.; Ayubu, Anapapa O.; Otieno, R. A. (2018-12)The quality, components, proportions and storage of feeds is critical in poultry farming. The rising prices and poor quality of feeds has constantly led to low returns due to low final weights among birds. The study applied ... -
Assessment of French Beans Production at Kariua in Kandara, Murang’a County- Kenya
Wangui, P. M.; Otieno, A.; Ayubu, Anapapa O. (2019-11)A sample survey research was conducted in November 2017 to January 2018 at Kariua area in Murang’a county, Kenya, with a sole aim to assess the current situation experienced by the French bean farmers in the area as well ... -
ASYMPTOTIC LINEAR ESTIMATION OF THE QUANTILE FUNCTION OF THE DOUBLE-EXPONENTIAL DISTRIBUTION BASED ON SELECTED ORDER STATISTICS
Ayubu, Anapapa O.; Odongo, L. O. (2012)Asymptotic linear estimation of the quantile function for the location-scale family of distributions is considered and results relating to the double-exponential distribution discussed. A formula for the selection of sample ... -
Capture–recapture for estimating the size of the female sex worker population in three cities in Coˆ te d’Ivoire and in Kisumu, western Kenya
Vuylsteke, B.; Vandenhoudt, H.; Langat, L.; Semde, G.; Menten, J.; Odongo, F.; Ayubu, Anapapa O.; Sika, L.; Buve, A.; Laga, M. (2010-12)Objective To estimate the female sex worker population size in three cities in Coˆ te d’Ivoire and in Kisumu, Kenya. Methods Capture–recapture was used, calculating size estimates by first ‘tagging’ a number of individuals ... -
Extended Cox Model on Duration Taken to Release Cargo at Kenyan Border Entry Point: A Case Study of Malaba Osbp
Emoru, K. E.; Chelule, J. C.; Imboga, H.; Ayubu, Anapapa O. (Science and Education Publishing, 2020-11)Duration taken to release cargo is one of World Customs Organisation’s most significant instruments of measuring trade facilitation. It is a way of reviewing clearance procedure by measuring the time taken to release cargo ... -
Markov Chain Model for Time Series and its Application to Forecasting Stock Market Prices
Chelule, J. C.; Otieno, R.; Ayubu, Anapapa O. (2018-09)A Markov chain is a discrete-valued Markov process; discrete-valued means that the state space of possible values of the Markov chain is finite or countable. This paper seeks to forecast stock market prices using Markov ... -
Modelling Time Default in University Fee Payment Using Cox Proportional Hazard Model
Rotich, W. J.; Chelule, J. K.; Ayubu, Anapapa O.; Imboga, H. (2019-04)Default is the failure to pay interest or other money that is owed on time. Time default is amount of time taken to clear the given debt past the set time line. Fee payment is guided by the fee payment policy produced by ... -
Monitoring Claim Processing Duration Using Statistical Quality Control
Chelule, J. C.; Boroon, D. C.; Ayubu, Anapapa O.; Imboga, H. (2019-04)Statistical quality control is an important tool used widely at service provision fields to monitor the overall operation. The significant application of the SPC analysis elements to the operation will make the process ... -
Optimization of Germination Conditions Of Melia volkensii By Response Surface Methodology
Ayubu, Anapapa O.; Koske, J. K.; Mutiso, J. M. (2016-09)Germination of Melia volkensii was modelled using response surface methodology (rsm) whereby second order models were developed and the associated response surfaces analyzed. The factors under investigation were soil pH, ... -
Optimization of Split-Plot Design in the Context of Mixture Process Variable Settings
Wanyonyi, S. W.; Ayubu, Anapapa O.; Koech, J. K.; Korir, B. C. (2021-04)In the presence of process variables, a mixture design has become well-known in statistical modeling due to its utility in modeling the blending surface, which empirically predicts any mixture's response and serves as the ... -
Survival Analysis of Cancer Patients Using Weibull Parametric Model
Chepkech, W. K.; Chelule, J. C.; Ayubu, Anapapa O.; Imboga, H. (2019-05)Cancer incidence and mortality are rapidly growing worldwide. The reasons are complex but reflect both aging and growth of the population, as well as changes in the prevalence and distribution of the main risk factors for ... -
Time series analysis of air pollution trends in Kenya using environmental Kuznets curve
Simiyu, L. M.; Chelule, J. C.; Ayubu, Anapapa O.; Imboga, H. (2020-12)Air pollution occurs when harmful or excessive quantities of substances including gases are introduced into Earth's atmosphere. It may cause diseases, allergies and even death to humans; it may also cause harm to other ... -
Time series analysis of Nandi county government revenue using seasonal autoregressive integrated moving average (SARIMA) model
Koech, C. K.; Chelule, J. C.; Ayubu, Anapapa O.; Imboga, H. (2020-10)In Kenya, there are two levels of government namely the National Government (NG) and County Governments (CGs). NG’s revenue is mainly from taxation, borrowing, and grants among other sources while CGs rely on allocation ... -
Time Series Analysis of Road Accidents Using Autoregressive Integrated Moving Average (ARIMA) Model
Chelule, J. C.; Ngetich, M. K.; Ayubu, Anapapa O.; Imboga, H. (2019-04)The road transport industry in Kenya plays a vital role in the life of the majority of her citizens. Many Kenyans utilize different transport modes to reach their various destinations daily. Nearly 3000 people killed on ...