Autori: Leisen, Fabrizio , Crimaldi, Irene
Titolo: Asymptotic results for a generalized Pòlya urn with delay and an application to clinical trials
Periodico: Università degli Studi dell'Insubria. Dipartimento di Economia. Quaderni di ricerca
Anno: 2007 - Fascicolo: 5 - Pagina iniziale: 1 - Pagina finale: 15

In this paper a new P¶olya urn model is introduced and studied; in particular, a strong law of large numbers and two central limit theorems are proven. This urn generalizes a model studied in Berti et al. (2004), May et al. (2005) and in Crimaldi (2007) and it has natural applications in clinical trials. Indeed, the model include both delayed and missing (or null) responses. Moreover, a connection with the conditional identity in distribution of Berti et al. (2004) is given.


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Testo completo: http://eco.uninsubria.it/dipeco/quaderni/files/QF2007_5.pdf

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