Sunday, October 2, 2011

Chapter 9 Guiding Questions

Here are a few questions to consider for chapter 9:


What should we always look at before deciding a linear model is a good fit for our data?



What should we do if there looks to be subsets in our data?



What is extrapolation and why is it dangerous?



Describe/define high leverage points



Describe/define outliers.



Describe/define influential points.



Describe a point on a scatterplot that would have a large residual.



What is wrong with working with summary values when comparing two quantitative variables?







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