Inference about the ratio of scale parameters in a two-sample setting with current status data

Abstract

This paper deals with inference about the ratio of scale parameters in a two-sample problem based on current status data. It discusses properties of tests and point estimates derived from a class of U-statistics. In particular, it derives the asymptotic distribution of the underlying test statistic both under the null hypothesis and under local alternatives and obtains asymptotic normality of the point estimate.