A new family of distributions, by name generalized odd inverse exponential distribution was developed in this study. The new family of distributions were developed using the concepts of relative odds. The statistical properties such as quantile function, characteristic function, moments, moment generating function, mean residual life, inequality measures and order statistics for the new family of distributions were obtained. The maximum likelihood, ordinary least squares and Cramér-von Mises...
The Wa Regional Hospital’s live births and maternal mortality were analysed and forecasted in this study. The data were obtained from the Regional Hospital and covered the period from January 2009 to June 2020. This study applied Vector Autoregressive with exogenous variable to model the interdependent and dynamic structure that exists between the endogenous variables (live births and maternal mortality) and the exogenous variable (maternal age). Also, the dynamic structure of the observed ...
The main aim of the study was to examine the influence of modern agricultural practices and technologies on maize production. Data on yields for five different farming seasons and other attributes of Climate Smart Agriculture Technologies were obtained from three communities in the Lawra Municipality. The study identified a six factor solution which explained the correlation in the observed data without substantial loss of information. Multinomial Logistic Regression and Mixed Effect Linear R...
The Transmuted Type I General Exponential family of distributions as a new generator is proposed and studied. The new generator has a closed form and therefore very tractable, its hazard rate function has the flexibility to model different kinds of the bathtub shapes. Also, a comprehensive description of the statistical properties of the new generator including explicit expressions for the ordinary and incomplete moments, moments generating function, order statistics and stochastic ordering p...
This study models infant birth weight and investigate maternal predictors using lifetime data by taking into account the non-zero probability of zero occurrences of the response variable. The birth weights were found to be positively skewed and leptokurtic in nature. The average birth weight was found to be 2.9898kg. In modelling the determinants of infant birth weight, the Tweedie regression model was compared with Gaussian, Gamma and inverse Gaussian regression models. The performance of th...
The economy of Ghana largely depends on agriculture for its growth. In Ghana, agricultural productivity largely relies on rainfall. This study seeks to explore the rainfall pattern using data from the Ghana Meteorological Agency from January 1999 to December 2019 for the Navrongo and Bolgatanga weather substations. A univariate two-state Markov switching autoregressive model was used to characterize the distinct seasonal regime behavior of the rainfall in the study area. The data sets were fo...
Recently, statisticians have been exploring the generalization and extension of classes of distributions to make them more flexible for data analysis. There are a lot of data sets that are either extremely skewed, bimodal, bathtub or have heavy tails. However, inverse exponential distribution cannot model data sets that exhibit these features properly. In this study, a new family of inverse exponential distribution called T-inverse exponential {Y} family based on quantile function approach ha...
Malaria has become a common disease that affects the health of every household. The canker is expected to continue with its devastating effects for a long period given the absence of sufficient interventions to mitigate it. Several researches have been undertaken to investigate the pattern of malaria cases in Ghana. This study modeled the effects of climatic variables on monthly malaria cases in Wenchi Municipal using Poisson Switching Regression Model. Secondary data on malaria from January,...
Across the life cycle, energy and nutrient requirements vary depending on age, sex, physiological state, and physical activity levels. Universally, school meals are seen as a way of tackling malnutrition and poor eating behaviours in school children. The provision of meals by colleges of nursing is geared towards meeting the nutrient requirements of students, thereby, improving their nutritional status. The study focused on estimating the nutritional status and nutrient intake adequacy of stu...
Increasingly most people have their meals outside their homes and are vulnerable to illness caused by unsafe food. Unsafe food preparation and supply by vendors have made food safety a concern for public health. Tamale is a densely populated city in the northern part of Ghana and many food vendors abound. This study evaluated the nutrition knowledge, attitude, and food safety and hygienic practices of food vendors in the Tamale Metropolis of the Northern region, Ghana. An analytical cross-sec...
The main objective of this study was to apply estimation maximization concept to assess residuals through structural equation modelling. This was achieved through simulation setup. Data was obtained from test scores of some selected course lecturers of Kumasi Technical University to validate the results from the simulation. The results showed that the estimated residuals of the measurement errors using all three estimators correlate negatively with the estimated residuals associated with meas...
The impacts of extremely high temperatures on plants, human beings and animals’ health have been studied in several parts of the world. However, extreme events are uncommon and have only attracted attention recently. In this study, extreme temperature behaviour was modelled through the application of extreme value theory using maximum monthly temperatures over a 32 years period. Data on monthly maximum temperature from the Upper East Region were modelled using generalized extreme value (GEV...
The inverted Kumaraswamy distribution has a drawback in modeling lifetime data which show non-monotone failure rates. Thus, a new class of distributions called power series inverted Kumaraswamy distribution was developed by compounding the inverted Kumaraswamy distribution with zero truncated power series distribution with the goal of making it more flexible. The new class of distributions were developed using the stochastic representation Z min (T1,T2 ,...TN ) which is the time to the fi...
Erectile dysfunction is defined as the continuous inability of a man to attain a satisfactory erection for a successful sexual intercourse. Female sexual dysfunction is also defined as the inability of a woman to enjoy a complete sexual activity. A twoway between groups MANOVA was performed to investigate whether there is a significant difference between male and female, and married and single. Five dependent variables were used: age, creatinine levels, duration of diabetes, glucose levels an...
A new class of distributions, called complementary power series exponentiated Nadarajah-Haghighi distribution was developed in this study by compounding the exponentiated Nadarajah-Haghighi distribution with zero truncated power series distributions. The new class of distributions were developed using the concepts of latent complementary risk scenario, in which the lifetime associated with a particular risk is not observable; rather we observe only the maximum lifetime value among all risks. ...