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14. a. Use double exponential smoothing to forecast sales using an o of 0.20. a 3 of 0.50, an initial base of 38.0, and a trend of 2.0. b. Extend the forecasts through period 15. PERIOD SALES 39 Coto - 6 7 8 9 10 39 44 49 48 45 56 53 61 14. a. Use double exponential smoothing to forecast sales using an a of 0.20, a of 0.50, an initial base of 38.0, and a trend of 2.0. b. Extend the forecasts through period 15. PERIOD SALES 1 39 47 39 Go 6 7 48 45 56 53 61