Percentage Points for the Fisher-Cochran Test for Equality of Variances

Abstract

A well known test for equality of normal population variances, based on sample variances, was introduced by Cochran (1941). He introduced a test strategic which compares the largest sample variance with the sum of the sample variances. Clearly the intent is to discover if one variance is an outlier (too large), and, in general, H sub o will be rejected for large values of Z. Tables of various percentiles are given for various values of n and k.

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Document Details

Document Type
Technical Report
Publication Date
Aug 19, 1988
Accession Number
ADA199070

Entities

People

  • Herbert Solomon
  • Michael A. Stephens

Organizations

  • Stanford University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Chemical Industry
  • Data Science
  • Harmonic Analysis
  • Information Science
  • Military Research
  • New York
  • Order Statistics
  • Probability
  • Quality Control
  • Random Variables
  • Security
  • Statistical Analysis
  • Statistics
  • United States
  • United States Government

Fields of Study

  • Mathematics

Readers

  • Statistical inference.