How are the values of b and β similar? How are they different?
Answer to relevant QuestionsFor a regression (to predict Y from X1 and X2), is it possible to have a significant R, but non significant b coefficients for both X1 and X2? If so, under what circumstances would this be likely to occur? If you have k groups, why do you only need k-1 dummy variables to represent group membership? Why is it impossible to include k dummy variable as predictors in a regression when you have k groups? Consider these two tables of cell means. Which one shows a possible interaction, and which one does not show any evidence of an interaction? Table 1 Table 2 Based upon these two tables, show that: a. When an interaction is ...What is an R2inc? How is the R2inc for a single variable that enters in a particular step related to the srinc2 for that same single variable in the same step? What information do we need to assess possible multicollinearity among predictors?
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