plz answer the table as it it without adding columns!!!, show calculations clearly and ill thumbs up

Assessment Questions: Erre a CNI 1. Following table shows the monthly sales of laptop at a retail store Month Number of Forecast Error Forecast laptops Sold using 3 using period moving exponential smoothing average (with 0.2) 1 95 2 109 3 105 4 100 5 120 140 7 150 8 Answer the following questions based on the data given above. Show your calculations a. What is the expected sales for the 8 month based on 3 period moving average? (15 Points) ANS: b. What is the expected sales for the month based on exponential smoothing with a -0.2? (15 Points) ANS: c. Which of the above two forecasting method is better based on MAD and why? (20 Points) ANS