A sales manager wants to forecast monthly sales of the machines the company makes using the following monthly sales data. Month le 22 3e 4e se 6 Balance le $3,803e le $2,5584 $3,469 $3,442 le $2,682 $3,469 $4,442 $3,7284 le 7 82 Use the information in the table above. Forecast the monthly sales of the machine for month 9, using the three-month moving-average method. Use the information in the table above. Use the 3-month weighted moving-average method to calculate the forecast for month 9. The weights are 0.60,0.30, and 0.10, where 0.60 refers to the most recent demand. Month January February Marche Aprile May June Demande 480 520 5352 550 590 630 Use the information in the table above. Use an exponential smoothing model with a smoothing parameter of 0.30 and an April forecast of 525 to determine what the forecast sales would have been for June