Question 3: (05 Marks Only) Use the following TABLE and the information given to answer to the below questions. A Hardware store manager believes that there is a linear relationship between the income from sales of goods (in thousands of dollars) and the amount spent on advertising (in thousands of dollars). R&D Spending (Thousands of Income from Sales (Thousands of Dollars) Dollars) 6 20 6 22 4 21 5 24 3 27 3-5 27 mm a) Predicted income from the sales of goods when $ 9.8 is spent on R&D? b) The value of r is such that -1 g r 5 +1. The + and signs are used for positive linear c0rrelations and negative linear correlations, respectively. Calculate R value and discuss the nal result