In order to incorporate qualitative variables into a regression model, one or more dummy variables are needed.
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Q28: Stepwise regression analysis is a procedure that
Q29: In stepwise regression procedure, the independent variable
Q30: Plots of the residuals against 
Q31: Stepwise regression is an iterative procedure that:
A)
Q32: Three qualitative variables need to be incorporated
Q34: In constructing a multiple regression model with
Q35: Stepwise regression is especially useful when there
Q36: The stepwise regression analysis is best used
Q37: If you wish to develop a multiple
Q38: Stepwise regression analysis is most useful when
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