On the Performance of Power of Tests for the Comparison of Exponential Distributions.

摘要

In the paper power functions are derived for the lieklihood ratio test and the Kumar-Patel test which are based on right-censored samples for testing the equality of location parameters of two exponential distributions when their common scale parameter is unknown. It is further indicated that the power of the likelihood ratio test is monotonic and is completely unbiased. On the other hand, the Kumar-Patel test is biased near near the origin except for equal sample sizes. (Author)