Response surface methodology (RSM) is a collection of tools developed in the 1950s for the purpose of determining optimum operating conditions. In this work, a three level three factor (33) factorial design that metamorphosed to the response surface design with two augmented cent...
Open access
Research Article10.9734/ajpas/2022/v16i330404
In this paper, we focused our attention on the creation of an almost unbiased predictive product estimator after estimating and correcting bias of the classical product estimator under predictive approach. Considering mean square error as the performance measure, superiority of t...
Open access
Research Article10.9734/ajpas/2022/v16i330403
Software reliability analysis is very vital in software development. Software manufacturers assess the quality of their developed software through this analysis. This has triggered the development of reliability models. Software reliability growth models have been used extensivel...
Open access
Research Article10.9734/ajpas/2022/v16i330402
One of the major challenges faced by most pension fund managers in the defined pension (DC) scheme is how best member’s contributions can be invested to yield maximum returns. To achieve this, there is need to model and developed a robust investment plan which takes into consider...
Open access
Research Article10.9734/ajpas/2022/v16i330401
The generalization of standard and generalized distributions has become one of the concerns that the statistical theory depends on to obtain more exible distributions. In this article, a new distribution that is considered a generalization of the generalized inverted exponential...
Open access
Research Article10.9734/ajpas/2022/v16i230400
The Odd Generalized Exponentiated-Inverse Exponential Distribution, a three parameter distribution, is a hybrid of the Generalized Exponential distribution. Each of the parameters were assigned a gamma prior independently resulting to a posterior distribution that is mathematical...
Open access
Research Article10.9734/ajpas/2022/v16i230399
This study used a multivariate negative binomial model to capture the Spatiotemporal endemic-epidemic of infectious disease and explore the spatial and temporal patterns of cholera outbreaks in Nigeria. The model for the epidemic part measured spatial weights for the disease spre...
Open access
Research Article10.9734/ajpas/2022/v16i230398
The F-distribution is a particular parameterization of the beta prime distribution, which is also called the beta distribution of the second kind. This considered a new four-parameter generalized version of the Fisher Snedecor distribution called Beta- F distribution is introduce...
Open access
Research Article10.9734/ajpas/2022/v16i230397
Time spent by patients to get service at the hospital is becoming a major source of concern to health care providers. The results of keeping patients waiting for too long in a queue in order to assess medical services may put them in so many inconveniences or at times can lead to...
Open access
Research Article10.9734/ajpas/2022/v16i230396
This research work, studied the hybrid of autoregressive integrated moving average (ARIMA) and generalized autoregressive conditional heteroscedasticity models that best fit monthly crude oil price volatility of Nigeria between January, 2010 to March, 2021. The study collected se...
Open access
Research Article10.9734/ajpas/2022/v16i130394