A0427
Title: Maximum precision estimation for a step-stress model using two-stage methodologies
Authors: Sudeep Bapat - Indian Institute of Management Indore (India) [presenting]
Abstract: A two-stage sequential procedure to estimate the parameters of a cumulative exposure model under an accelerated testing scenario is discussed. We focus on a step-stress model where the stress level is updated after a pre-specified number of failures occur, which is also random. This is termed as the ``random stress change time'' in the literature. To obtain maximum precision, a certain variance optimality criterion is applied. A pseudo-real data example from reliability studies is also analysed to outline the performance of the proposed methodology.
