An approximation for the noncentral chi-squared distribution

D. A.S. Fraser, J. Wu, A. C.M. Wong

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A simple and accurate method is discussed for approximating the noncentral chi-squared distribution; it is based on recent developments in third order asymptotic methods. The method is easy to apply and uses only a standard normal distribution function evaluation.

Original languageEnglish
Pages (from-to)275-287
Number of pages13
JournalCommunications in Statistics Part B: Simulation and Computation
Volume27
Issue number2
DOIs
StatePublished - 1998

Keywords

  • Accurate approximation
  • Asymptotic inference
  • Chi-squared distribution
  • Significance function

ASJC Scopus subject areas

  • Statistics and Probability
  • Modeling and Simulation

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