Question 2: Simple Linear Regression Analysis: (10 Marks) PC World provided details for ten of the most economical laser printer (PC World, April 2013). The following data show the maximum printing speed in pages per minute (ppm) and the price (in Euros including 15 per cent value added tax) for each printer. (ppm) Price (E) 10 rother HL 203 Laser jct P1005 ML-1640 P Laser jet P1006 95 90 90 105 75 12 80 85 110 115 Laser jet PIso 12 14 EPL-6200 Hint: The regression equation y- 4.3 x+52.13 and R'-0.8884 Answer all the following questions: Construct a scatter diagram with speed and the price. (3 marks) Note: You may use the attached graph paper on uext page 4 or any other graph paper What kind of relationship exists between speed and the price? (1 mark) 3) Compute the coefficient of correlation (2 marks) What does the correlation coefficient tell you about the relationship between speeds and price? (2 marks) s) Use the regression equation to predict price when speed is 8 ppm. (2 marks)