Comparing Two Groups, Treatments or Processes
One of the most common applications of statistical analysis is to assist scientists establish (i) if one population is different from another; (ii) if one treatment is better than another; or (iii) if one process has different characteristics than another. Scientists 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 which require an introduction before proceeding to the possible forms of comparison.
KeywordsSampling Distribution Standardize Residual Normal Probability Plot Supplement Group Sample Member
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