Academic Journal
Bartlett and Bartlett-type corrections for censored data from a Weibull distribution
| Τίτλος: | Bartlett and Bartlett-type corrections for censored data from a Weibull distribution |
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| Συγγραφείς: | Magalhães, Tiago M., Gallardo, Diego I. |
| Πηγή: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) SORT-Statistics and Operations Research Transactions; Vol. 44, Núm. 1 (2020): ; 127-140 SORT-Statistics and Operations Research Transactions; Vol 44, No 1 (2020): January-June; 127-140 oai:raco.cat:article/371185 Repositori Institucional de la Universitat Rovira i Virgili Universitat Rovira i virgili (URV) Dipòsit Digital de Documents de la UAB Universitat Autònoma de Barcelona |
| Στοιχεία εκδότη: | Institut d'Estadística de Catalunya, 2020. |
| Έτος έκδοσης: | 2020 |
| Θεματικοί όροι: | Estadística matemàtica, Type i and ii censoring, Bartlett correction, Classificació AMS::62 Statistics::62F Parametric inference, Maximum likelihood estimates, chi-squared distribution, Àrees temàtiques de la UPC::Matemàtiques i estadística::Estadística matemàtica, maximum likelihood estimates, type I and II censoring, Matemàtiques i estadística::Estadística matemàtica [Àrees temàtiques de la UPC], 62 Statistics::62F Parametric inference [Classificació AMS], Censored data, censored data, Weibull distribution, Chi-squared distribution |
| Περιγραφή: | In this paper, we obtain the Bartlett factor for the likelihood ratio statistic and the Bartlett-type correction factor for the score and gradient test in censored data from a Weibull distribution. The expressions derived are simple, we only have to define a few matrices. We conduct an extensive Monte Carlo study to evaluate the performance of the corrected tests in small sample sizes and we show how they improve the original versions. Finally, we apply the results to a real data set with a small sample size illustrating that conclusions about the regressors could be different if corrections were not applied to the three mentioned classical statistics for the hypothesis test. |
| Τύπος εγγράφου: | Article |
| Περιγραφή αρχείου: | application/pdf; application/zip |
| Γλώσσα: | English |
| DOI: | 10.2436/20.8080.02.97 |
| Σύνδεσμος πρόσβασης: | http://hdl.handle.net/20.500.11797/RP4900 https://ddd.uab.cat/record/225689 https://dialnet.unirioja.es/servlet/articulo?codigo=7537021 https://ddd.uab.cat/pub/sort/sort_a2020v44n1/sort_a2020v44n1p127.pdf https://hdl.handle.net/2117/362097 https://doi.org/10.2436/20.8080.02.97 |
| Rights: | CC BY NC ND |
| Αριθμός Καταχώρησης: | edsair.dedup.wf.002..728b9aa1ed252c20efa815ceebcf0279 |
| Βάση Δεδομένων: | OpenAIRE |
| DOI: | 10.2436/20.8080.02.97 |
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