Question 6 The variable yearly income is examined in a regression setting where the predictor variable is lag {1) of income and the following output is produced. l' U] .D' m :5 Hal woo H. V (o .- 41.- V a) Write down the regression equation. {2 marks}. b) Interpretthe meaning ofthe slope. {2 marks). c) Explain whether this model is appropriate to use for forecasting based on this output. (2 marks}. d) A dummy variable for gender (male20, female=1) was added to the model. Interpret its coefficient of 0.1. {3 marks]