Your browser does not support JavaScript!

Vita e Pensiero

Generalized Alpha Skew Normal Distribution newdigital
format: Article | STATISTICA & APPLICAZIONI | Online First
Year: 2020
This paper extends the work of Elal-Olivero (2010) on the alpha-skew normal distribution. The extension is a multivariate version of Elal-Olivero’s univariate case. Then we study the statistical properties of the new extension such as marginal and conditional distribution, closure under convolution with normal random variate. Furthermore, we illustrate the performance of the distribution using simulated data obtained from the generalized distribution via the Metropolis-Hasting algorithm...
Free
Density-weighted quantile regression newdigital
format: Article | STATISTICA & APPLICAZIONI | Online First
Year: 2020
This study proposes a new weighted quantile regression method through the introduction of weights based on a recursive estimation of the density function of residuals. The new estimators are strictly related to the quantity quantile method introduced by Radaelli and Zenga in 2006...
Free
STATISTICA & APPLICAZIONI - 2019 - 1 newdigital
format: Digital issue
Year: 2019
Primo fascicolo del 2019
Increasing the efficiency of ranked set sampling via visual grouping with respect to a threshold newdigital
format: Article | STATISTICA & APPLICAZIONI - 2019 - 1
Year: 2019
In this paper, a new sampling technique is proposed that carries more information than contained in ranked set sample (RSS). The proposed sampling technique is defined by making the use for the idea of visual grouping of population units with respect to a fixed threshold and RSS. We refer to it as RSS-Grouping technique. Under the best informative RSS-Grouping technique, the maximum likelihood estimator (MLE) of the mean of an exponential distribution is derived...
Download
A new tool to assess the concept of food quality in children: a validation study newdigital
format: Article | STATISTICA & APPLICAZIONI - 2019 - 1
Year: 2019
Childhood is the most relevant period for the formation of food preferences. Political institutions, educational agencies and health professionals are quite interested in the evaluation of the actual knowledge of food quality in children because it offers the opportunity to plan educational actions aimed at promoting the health and quality of life of today’s and tomorrow’s citizens. In this paper, we proposed a questionnaire to measure the level of knowledge of the food quality in children....
Download
A combined clustering and multi-criteria approach for portfolio selection newdigital
format: Article | STATISTICA & APPLICAZIONI - 2019 - 1
Year: 2019
One of the key role of a portfolio manager is to identify a suitable asset allocation strategy. The portfolio composition task has to take into account the return and the risk of each asset along with several other factors such as investor’s aims, market expectations and risk tolerance...
Download
Partial least square path modelling and maximum entropy for the study of entrepreneurship education in naples university newdigital
format: Article | STATISTICA & APPLICAZIONI - 2019 - 1
Year: 2019
Although successful entrepreneurship education (EE) is possible through the most effective way to manage teachable skills and competencies, there is no universal pedagogical recipe to teach entrepreneurship. This paper attempts to identify the most appropriate teaching methods and addresses the paucity of entrepreneurial outcomes on university experiences in EE. Using a survey of students at a Naples University, it attempts to advance our understanding of an entrepreneurship education program...
Download
Asymptotic Confidence Intervals for Parameters Estimated through the Ratio of Asymptotically Normal Statistics newdigital
format: Article | STATISTICA & APPLICAZIONI - 2019 - 1
Year: 2019
In this paper, four different approaches for the definition of asymptotic confidence intervals for the ratio of two unknown parameters are reviewed and compared via a simulation study. The considered approaches are based on the well known Delta Method and on the distribution of the ratio of correlated normal random variables...
Download
Combined Clustering and Multi-Criteria Approach for Portfolio Selection digital
format: Article
Year: 2020
One of the key role of a portfolio manager is to identify a suitable asset allocation strategy. The portfolio composition task has to take into account the return and the risk of each asset along with several other factors such as investor’s aims, market expectations and risk tolerance...
€ 6.00
STATISTICA & APPLICAZIONI. Abbonamento annuale - Annual Subscription 2020. Personal Italy print and digital subscription digital
format: Digital and physical subscription | editore: Vita e Pensiero | anno: 2020
Year: 2020
Abbonamento annuale Annual Subscription - STATISTICA & APPLICAZIONI
€ 71.00
STATISTICA & APPLICAZIONI - 2018 - 2 digital
format: Digital issue
Year: 2018
Secondo fascicolo del 2018
Sommario dell'annata digital
format: Article | STATISTICA & APPLICAZIONI - 2018 - 2
Year: 2018
Download