Task 1 Table below shows some data from the early days of the Italian clothing company Benetton. Each row in the table shows Benetton's sales for a year and the amount spent on advertising that year. In this case, our outcome of interest is sales-it is what we want to predict. If we use advertising as the predictor variable, we can find a linear regression model which would give estimates of the sales. Which one of the following will the best regression model? Justify your answer. Sales = 22.60 Advertising + 169.2 Sales = 23.42 x Advertising + 167.7 Sales = 23.10 > Advertising + 168.1 . Year 1 2 3 4 Sales (Million Advertising Euro) (Million Euro) 651 23 762 26 856 30 1,063 34 1,190 43 1,298 48 1,421 52 1,440 57 1,518 58 5 6 7 8 9 Tip: Calculate the Least Squares Error