R. E. Barlow and E. Proschan, “Exponential Life Test Procedures When the Distribution under Test has Monotone Failure Rate,” Journal of American Statistic Association, Vol. 62, No. 318, 1967, pp. 548-560.

has been cited by the following article:

• TITLE: On Robustness of a Sequential Test for Scale Parameter of Gamma and Exponential Distributions

  AUTHORS: Parameshwar V. Pandit, Nagaraj V. Gudaganavar

  KEYWORDS: Gamma Distribution, Sequential Probability Ratio Test, Operating Characteristic Function, Average Sample Number Function, Robustness

  JOURNAL NAME: Applied Mathematics, Vol.1 No.4, October 29, 2010

  ABSTRACT: The main aim of the present paper is to study the robustness of the developed sequential probability ratio test (SPRT) for testing the hypothesis about scale parameter of gamma distribution with known shape parameter and exponential distribution with location parameter. The robustness of the SPRT for scale parameter of gamma distribution is studied when the shape parameter has undergone a change. The similar study is conducted for the scale parameter of exponential distribution when the location parameter has undergone a change. The expressions for operating characteristic and average sample number functions are derived. It is found in both the cases that the SPRT is robust only when there is a slight variation in the shape and location parameter in the respective distributions.