Find Replace Paint Date and insert drawing time object Select all Insert Editing The missing or displayed improperly. USE NUMBER (7) TO SOLVE THE EXERCISES Exercise 3: Exponential Smoothing method (forecasting) --- A demand had been forecast for last week at ( .) 220 x... products and only (...) 210 x ... products were actually demanded. What would the forecast be for this week using exponential smoothing with a=0.25? F = b. supposing, with the forecast made in (a), this week's demand actually turns out to be (.....) 225 X.... What would the new forecast for the next week? F = Exercise 4. A firm's sales for a product line during the past 12 quarters were as flows: Al find Replace Date and insert Objed Select all sert Editing ng or displayed improperly. Exercise 4: A firm's sales for a product line during the past 12 quarters were as flows: Quarter Sales Quarter Sales Quarter Sales 1 6 X ...- 7 26 x.... 13 ? 2 15 X... 8 29 X 14 ? 3 15 x 9 38 X.. 15 2 4 15 X 10 45 X ... 16 ? 5 24 X. 11 40 X 6 31 x 12 49 X The firm wants to make forecasts for quarters 13,14,15 and, 16 N= ........ 1 2 2 3 4 5 5 6 7 8 9 10 11 12 Year (t) Sales (D) 1 2 3 4 S 6 Dt Year (t) Sales (D) t? t.D t.D: Sales (D) Dt t.D. t.D. b= a= D = ... + (t)