MONTE CARLO INVESTIGATIONS OF SMALL SAMPLE BRUCETON TESTS

Abstract

Monte Carlo investigations of Bruceton tests (twenty-five and fifty trials) show the following characteristics: (1) a bias in the estimate of the standard deviation causes predictions of reliability or safety based on such tests to be too optimistic; (2) there are additional biases (in the parameters G and H) which will cause underestimates of the errors of the mean and standard deviation; (3) there is little correlation between the actual standard deviation and its estimate as obtained from the short Bruceton test; (4) the order in which the items of the sample are tested has a serious effect upon the estimates obtained; (5) a poor choice of starting level can give misleading results when the step is small.

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Document Details

Document Type
Technical Report
Publication Date
Feb 17, 1967
Accession Number
AD0649255

Entities

People

  • L. D. Hampton

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Applied Mathematics
  • Coefficients
  • Confidence Limits
  • Distribution Functions
  • Explosives
  • Gaussian Distributions
  • Maryland
  • Munitions
  • National Security
  • Normal Distribution
  • Ordnance Laboratories
  • Probability
  • Reliability
  • Sampling
  • Security
  • Statistical Analysis
  • United States

Readers

  • Aerospace Test and Evaluation
  • Computational Modeling and Simulation
  • Educational Psychology