in letteratura, per l’imputazione dei dati mancanti nelle serie storiche, si fa riferimento a statistiche applicate all’intera serie analizzata (e.g. media di tutti i termini della serie), ottenendo una costante d’imputazione generalmente adeguata per una specifica serie. Se le serie sono...

[En] In the assessment of the market it is crucial to identify the preferences of consumers. The Conjoint Analysis is one of the possible technique to be used. The aim of this work is to observe certain properties of the estimates obtainable by the models of the Conjoint Analysis through the...

According to the Statement on Auditing Standards (SAS) No. 39 (AU 350.01), audit sampling is defined as “the application of an audit procedure to less than 100 % of the items within an account balance or class of transactions for the purpose of evaluating some characteristic of the balance or...

In this paper we discuss the problem on parametric and non arametric estimation of the distributions generated by the Marshall-Olkin copula. This copula comes from the Marshall-Olkin bivariate exponential distribution used in reliability analysis. We generalize this model by the copula and...