Nayeban S.; Rezaei Roknabadi A. H.; Mohtashami … - In: Economic Quality Control 28 (2013) 2, pp. 7-7
One of the most fundamental issues in estimation theory about accuracy of an unbiased estimator is computing or approximating its variance. Very often, the variance has a complicated form or cannot be computed explicitly. In this paper, we consider two well-known lower bounds for the variance of...