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STA6166 F07-21 Comparing More than 2 Populations

STA6166 F07-21 Comparing More than 2 Populations - Topic 21...

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Topic 21 - ANOVA (I) 21-1 Topic 21 - Inferences For More Than 2 Populations EXAMPLES : 1) Suppose we want to compare species diversity of microfauna in three different habitats: desert, caves, and arctic tundra. a. Hypotheses and inferences are related to determining whether there are differences in mean diversity among the three habitats and if so, determining how they differ 2) Suppose we want to compare the average growth rate in oysters maintained in four different temperatures. a. Hypotheses might be that average growth rate differs among the four temperatures studied (we could go further and make hypotheses regarding whether the means increase or decrease but then we are moving into the regression setting rather than the ANOVA setting) Defn : A Factor is the variable that separates the groups of interest into distinct populations.
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