Question: please show formulas so i can better understand this and also put answers in graph form. thank you! :) 8.8. Weekly demand for an item

please show formulas so i can better understand this and also put answers in graph form. thank you! :)

8.8. Weekly demand for an item averaged 100 units over the past year. Actual demand for the next eight weeks is shown in what follows: a. Plot the data on graph paper. b. Letting a = 0.25, calculate the smoothed forecast for each week. c. Comment on how well the forecast is tracking actual demand. Is it lagging or lead- ing actual demand? Week Actual Demand Forecast 1 103 100 2 112 3 113 4 120 5 128 6 131 7 140 8 142 I 9

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