Entropy of Hybrid Censoring Schemes

A hybrid censoring scheme is a mixture of type I and type II censoring schemes. When n items are placed on a life test, the experiment terminates under type I or type II hybrid censoring scheme if either a prefixed censoring time T or the rth (1 6 r 6 n is fixed) failure is first or later observed, respectively. In this paper, we investigate the decomposition of entropy in both hybrid censoring schemes. Entropy of type I hybrid censoring scheme is formulated and in order to determining the entropy of type IIhybrid censoring scheme the available information are used. The results are then applied to some common life time distributions as illustrative examples. Finally, maximum entropy of the mentioned censoring schemes is discussed.