Accession Number : AD0286302

Title :   A METHOD FOR DETERMINING A CONFIDENCE BOUND ON UNRELIABILITY WHEN TIME-TO-FAILURE IS NORMALLY DISTRIBUTED

Corporate Author : BUREAU OF NAVAL WEAPONS WASHINGTON D C

Personal Author(s) : SESHADRI,VANAMALAI ; ODELL,PATRICK L.

Report Date : 31 AUG 1959

Pagination or Media Count : 1

Abstract : Methods to set an upper, one-sided 100(1 - alpha) percent confidence limit (1 - alpha is a preassigned confidence coefficient) on the unreliability of certain weapon components are developed. The time-to-failure is assumed to be distributed normally. The method is based upon life tests in which every member of a randomly selected sample is tested to failure in an environment which simulates the actual operational environment. (Author)

Descriptors :   *FAILURE (MECHANICS), *PROBABILITY, *QUALITY CONTROL, *STATISTICAL DISTRIBUTIONS, *STATISTICAL PROCESSES, TEST METHODS

Distribution Statement : APPROVED FOR PUBLIC RELEASE