I want the complete solution with the steps a, b,and c and the solution in the tables. The tables are visualized by screen imaging.

Task 5 (Demand Forecasting) The actual demand of a particular product over the past four years are given in Table Q5. a. Using exponential smoothing technique, calculate the demand of the product for the fourth quarter (Q4) of the year 2021, using smoothing parameter (=0.1). (7 Marks) b. Using exponential smoothing technique, calculate the demand of the product for the fourth quarter (Q4) of the year 2021, using smoothing parameter (=0.2). (7 Marks) c. Determine the accuracy of the above two forecast models using the following measures of forecast accuracy: (i) Mean Absolute Deviation (MAD) (ii) Mean Squared Error (MSE), and (iii) Standard Error (SE). (2 Marks 3 = 6 Marks) (Note: Take the average of the first two quarters as the forecast of the first quarter)