On the optimality of rao's statistic
Tapas Kumar Chandra, Rahul Mukerjee · Communication in Statistics- Theory and Methods · 1984
This paper establishes the asymptotic optimality of Rao's test within a very wide class of tests that Includes the likeli hood ratio test and Wald's test. An expression for the defici¬ency of the tests in this class relative to Rao's test has also been obtained