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Una medida matricial para la comparación de experimentos censurados.

Agustín Turrero Nogués (1988)

Qüestiió

En este trabajo se desarrolla un método de comparación de experimentos con datos censurados. Dicho método se basa en la evaluación de la pérdida de información que se produce en estudios de supervivencia y fiabilidad cuando los tiempos de vida se censuran aleatoriamente por la derecha. Se supone que la distribución del tiempo de vida depende de un parámetro k-variante desconocido θ; y se usa la matriz de Fisher como medida de información apropiada acerca de θ. Se propone una medida matricial de...

Unbiased estimation for two-parameter exponential distribution under time censored sampling

S. Sengupta (2009)

Applicationes Mathematicae

The problem considered is that of unbiased estimation for a two-parameter exponential distribution under time censored sampling. We obtain a necessary form of an unbiasedly estimable parametric function and prove that there does not exist any unbiased estimator of the parameters and the mean of the distribution. For reliability estimation at a specified time point, we give a necessary and sufficient condition for the existence of an unbiased estimator and suggest an unbiased estimator based on a...

Unbiased estimation of reliability for two-parameter exponential distribution under time censored sampling

S. Sengupta (2010)

Applicationes Mathematicae

The problem considered is that of unbiased estimation of reliability for a two-parameter exponential distribution under time censored sampling. We give necessary and sufficient conditions for the existence of uniformly minimum variance unbiased estimator and also provide a characterization of a complete class of unbiased estimators in situations where unbiased estimators exist.

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