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Multiple regression equation with dummy variables

For a study of 634 companies in three industries, DM = manufacturing, DR = retail, and DT = transportation; X1 measures annual sales; and Y is annual profit rate. Set up two multiple regression equations that would enable you to investigate whether the kind of industry and sales interact in predicting a company's profit rate.

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  • Category:- Statistics and Probability
  • Reference No.:- M918149

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