ESTIMATING MEAN RELIABILITY GROWTH

Abstract

A model is defined wherein corrective action may be accounted for in improving the estimation of reliability over the usual nominal success ratio. Probabilities for correcting any one of K failure modes which may arise are assumed known within the structure of a multinomial sampling procedure. Mean reliability is defined as a function of the unknown probabilities attached to the failure modes, the problem being to estimate this mean. Other measures of current reliability are defined. Three different estimators of mean reliability are defined and analyzed from the point of view of unbiasedness. Explicit expressions for the bias are derived and compared numerically for a wide variety of choices for the unknown parameters. Several problem areas for further research are identified and partial formulations of some of these are discussed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1966
Accession Number
AD0629381

Entities

People

  • Peter W. Zehna

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Computer Simulations
  • Contracts
  • Distribution Theory
  • Estimators
  • Failure Mode And Effect Analysis
  • Mathematics
  • Probability
  • Random Variables
  • Reliability
  • Sampling
  • Simulations
  • Statistical Algorithms
  • Statistical Estimation
  • United States

Fields of Study

  • Mathematics

Readers

  • Statistical inference.
  • Systems Analysis and Design