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STATISTICA & APPLICAZIONI - 2019 - 1 newdigital
format: Digital issue
Year: 2019
Primo fascicolo del 2019
Increasing the efficiency of ranked set sampling via visualgrouping 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...
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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....
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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...
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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...
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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...
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Combined Clustering and Multi-Criteria Approach for Portfolio Selection newdigital
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...
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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
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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
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Application of the Zenga distribution to the analysis of household income in Poland by socio-economic group digital
format: Article | STATISTICA & APPLICAZIONI - 2018 - 2
Year: 2018
Zenga distribution is a new income distribution model which possesses interesting statistical properties and can be fitted to various empirical wage and income distributions. In the paper an attempt of an application of the model to income distributions in Poland by socio-economic groups is presented. The basis for the calculation was the micro data coming from the HBS sample provided by the Statistics Poland. The results of the calculations confirm that the Zenga distribution is a good income distribution model which can be successfully applied to income inequality analysis and income distribution comparisons...
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On the relative performance of tests of uniformity based on spacings: a simulation study digital
format: Article | STATISTICA & APPLICAZIONI - 2018 - 2
Year: 2018
In this paper a simulation study is carried out to compare the power of a new test derived from the Gini’s index of dispersion of the spacings with some well-known tests of uniformity against the standard alternatives such as the Beta family, Lehmann type alternatives and Tukey’s family of distributions...
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