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Hypothesis Testing and Statistical Power of a Test

Hun Myoung Park
Spring 2008

Table of Contents

  • 1. What Is a Hypothesis?
  • 2. Size and Power of a Test
  • 3. Components of the Statistical Power Analysis
  • 4. Power Analysis Using an Example
  • 5. Relationahip among the Components
  • 6. Applications
    • 6.1 Power Analysis of a one-sample T-test
    • 6.2 Sample size analysis of a one-sample T-test
    • 6.3 Power analysis of a paired-sample T-test
    • 6.4 Power analysis of a two independent samples T-test
    • 6.5 Power analysis of a one-way ANOVA
    • 6.6 Power analysis of a two-way ANOVA
  • 7. Software Issues
  • References

  • This document is designed to help beginners conceptually understand the statistical power of a test using SAS, G*Power, and Stata. See pdf for the lattest version.


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Copyright 2006, The Trustees of Indiana University

IU's involvement in the TeraGrid, and the presentation of this material is based upon work supported by the National Science Foundation under Grants No. 0833618, SCI451237, SCI535258, and SCI504075. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.