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Unformatted text preview: Statistical Inference Comparison of Two Groups Ash Genaidy Introduction Comparing some characteristic of two groups is a fundamental analysis in engineering studies. The outcome about which comparisons are made is called the response variable. The variable that defines the groups is called the explanatory variable. The analysis studies how the outcome on the response variable depends on or is explained by the value of the explanatory variable. Introduction The response variable is often called the dependent variable. The explanatory variable is also often called the independent variable. The terminology dependent variable refers to the goal of investigating the degree to which the response on that variable depends on the group to which the object belongs. Topic outline Methods for comparing means for independent samples Methods for comparing proportions for independent samples Small sample methods Quantitative Data We compare the means for the groups....
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 Summer '04
 Geinady

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