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This article in AJ

  1. Vol. 61 No. 2, p. 334-336
    Received: July 26, 1968



Practical Suggestions on Pooling Variances for F Tests of Treatment Effects1

  1. S. G. Carmer,
  2. W. M. Walker and
  3. R. D. Seif2



A two-part rule is given as a practical guide in preliminary tests of significance for determining whether or not otpool two or more variances for use as “error term” in subsequent F tests for treatment effects. Four examples involving commonly occuring analysis of variance tables are given to illustrate the use of the rule.

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