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Activity Number: 470
Type: Contributed
Date/Time: Wednesday, August 6, 2014 : 8:30 AM to 10:20 AM
Sponsor: Section on Statistics in Defense and National Security
Abstract #312756
Title: Sequential Testing for Mean Time Between Failures
Author(s): Jennifer Kensler*+
Companies: Applied Research Solutions
Keywords: Sequential Probability Ratio Test ; Reliability ; Department of Defense
Abstract:

Mean time between failures (MTBF) is a common metric used in Department of Defense (DoD) testing to assess reliability. Requirements often state that a system must demonstrate a certain MTBF. Given the currently constrained fiscal environment, it is desirable to minimize the amount of testing necessary to determine whether or not the required MTBF has been met. The sequential probability ratio test provides a framework for ending testing as soon as there is enough evidence to either support that the requirement has been met or not met. This case study compares a fixed time test with a sequential probability ratio test for testing MTBF for a military vehicle.


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