Large sample tests of [lambda]3 in the bivariate exponential distribution

In this paper, we compare the power of three different tests for testing zero and non-zero values of the parameter [lambda]3 which measures the degree of dependence between the two components in bivariate exponential distribution (BVED) of the Marshall-Olkin (1967) model. We also compare the power of the UMPU test proposed by Bhattacharyya and Johnson (1973) with the test based on MLE 3 for [lambda]3=0 and observed that the UMPU test performs better.