We introduce a new class of lifetime models called the transmuted powered moment exponential distribution. More specifically, the transmuted powered moment exponential distribution covers several new distributions. Survival analysis including survival function, hazard rate functi...
Open access
Research Article10.9734/ajpas/2021/v13i430314
This article presents the advantages of multivariate GARCH models. Multivariate GARCH models are identified as the best and flexible models in econometrics. Also, the interest of these models is to be able to examine and analyze the various relations which the various series main...
Open access
Research Article10.9734/ajpas/2021/v13i430312
The paper introduces several approximate maximum likelihood estimators of the parameters of the sub-fractional Chan-Karolyi-Longstaff-Sanders (CKLS) interest rate model and obtains their rates of convergence. A new algorithm inspired by Newton-Cotes formula is presented to improv...
Open access
Research Article10.9734/ajpas/2021/v13i330311
Application of SARIMA model in modelling and forecasting monthly rainfall in Nigeria was considered in this study. The study utilizes the Nigerian monthly rainfall data between 1980-2015 obtained from World Bank Climate Portal. The Box-Jenkin’s methodology was adopted. SARIMA (2...
Open access
Research Article10.9734/ajpas/2021/v13i330310
Generalizing probability distributions is a very common practice in the theory of statistics. Researchers have proposed several generalized classes of distributions which are very flexible and convenient to study various statistical properties of the distribution and its ability...
Open access
Research Article10.9734/ajpas/2021/v13i330309
In this paper, three difference-cum-ratio estimators for estimating finite population coefficient of variation of the study variable using known population mean, population variance and population coefficient of variation of auxiliary variable were suggested. The biases and mean...
Open access
Research Article10.9734/ajpas/2021/v13i330308
In this article a brief summary of some recent developments of Weibull lifetime models has been presented for a quick overview. Various extensions of the Weibull models and the properties of the extended Weibull distribution have been discussed. A brief discussion about the chara...
Open access
Research Article10.9734/ajpas/2021/v13i330307
In this work, we describe a Bayesian procedure for detection of change-point when we have an unknown change point in regression model. Bayesian approach with posterior inference for change points was provided to know the particular change point that is optimal while Gibbs sampler...
Open access
Research Article10.9734/ajpas/2021/v13i230305
Aims/ Objectives: To formulated a linear regression model to capture the relationship between tea production and climatic variables in terms of ARIMA. Place and Duration of Study: Department of Mathematics and Actuarial Science, Catholic University of Eastern Africa, Nairobi, Ken...
Open access
Research Article10.9734/ajpas/2021/v13i230306
Fidelia Chinenye Kiwu-Lawrence, Lawrence Chizoba Kiwu, Desmond Chekwube Bartholomew, Chukwudi Paul Obite & Akanno Felix Chikereuba·Asian Journal of Probability and Statistics·2021
Three classes of Central Composite Design: Central Composite Circumscribed Design (CCCD), Central Composite Inscribed Design (CCID) and Central Composite Face-Centered Design (CCFD) in Response Surface Methodology (RSM) were evaluated and compared using the A-, D-, and G-efficien...
Open access
Research Article10.9734/ajpas/2021/v13i230304