* Question Completion Status: QUESTION 4 25 points Save Answer thousands of dollars. Suppose we want to predict the sales based on the impact of three advertising medias (youtube, facebook and newspaper). Data are the advertising budget in thousands of dollars along with the sales in a) Using all the variables, what is the model, write it out. b) The following is the output for the model: sa Coefficients: Estimate Std. Error t value ProIt!) #8 (Intercept) 2.830904 0. 652328 4.353 5.750-05 .... ## youtube 0.045461 0. 002190 20.759