ON EVALUATION OF WARRANTY ASSURANCE WHEN LIFE HAS A WEIBULL DISTRIBUTION,

Abstract

A two parameter Weibull model with neither parameter known is assumed for failure time. A value is specified for the probability that no failures, in a lot of identically distributed components yet to be manufactured, will occur before the expiration of the warranty period. The warranty period, which must satisfy an assurance criterion at the prescribed probability level regardless of the true parameter values within the distribution, is to be calculated from a small preliminary sample of life lengths. An expression for the warranty period is derived as a function of the ordered observations and is determined only by the lot size, the sample size and the prescribed assurance level. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1968
Accession Number
AD0682081

Entities

People

  • N. R. Mann
  • S. C. Saunders

Organizations

  • Boeing

Tags

DTIC Thesaurus Topics

  • Acquisition
  • Behavior And Behavior Mechanisms
  • Behavioral Disciplines And Activities
  • Behavioral Sciences
  • Cooperation
  • Data Acquisition
  • Group Dynamics
  • Guarantees
  • Observation
  • Probability
  • Test And Evaluation

Fields of Study

  • Mathematics

Readers

  • Facility/Structural Engineering.
  • Statistical inference.