Comparing Two Groups, Treatments, or Processes

  • Glen McPherson
Part of the Springer Texts in Statistics book series (STS)


One of the most common applications of statistical analysis is to assist investigators establish (i) whether one population is different from another; (ii) whether one treatment is better than another; or (iii) whether one process has different characteristics from another. You must specify what is meant by different or better, and a range of possibilities is considered in Section 12.1.3. There are, however, two new features that require an introduction before we proceed to the possible forms of comparison.


Sampling Distribution Poisson Model Normality Assumption Standardize Residual Median Intake 
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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Glen McPherson
    • 1
  1. 1.School of Mathematics and PhysicsThe University of TasmaniaHobartAustralia

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