Shrinkage Testimation in Exponential Distribution based on Records under Asymmetric Squared Log Error Loss
Author(s) -
Mehran Naghizadeh Qomi,
Leila Barmoodeh
Publication year - 2016
Publication title -
journal of statistical research of iran
Language(s) - English
Resource type - Journals
ISSN - 1735-1294
DOI - 10.18869/acadpub.jsri.12.2.225
Subject(s) - shrinkage , mathematics , mean squared error , exponential function , exponential distribution , statistics , distribution (mathematics) , mathematical analysis
In the present paper, we study shrinkage testimation for the unknown scale parameter θ > 0 of the exponential distribution based on record data under the asymmetric squared log error loss function. A minimum risk unbiased estimator within the class of the estimators of the form cTm is derived, where Tm is the maximum likelihood estimate of θ. Some shrinkage testimators are proposed and their risks are computed. The relative efficiencies of the shrinkage testimators with respect to a minimum risk unbiased estimator of the form cTm under the squared log error loss function are calculated for the comparison purposes. An illustrative example is also presented.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom