1 2 3 4 5 6 7 8 9 10 28 27 36 26 28 36 22 24 Sales of tablet computers at Ted Glickman's electronics store in Washington, D.C., over the past 10 weeks are shown in the table below: Week Demand 19 20 a) The forecast for weeks 2 through 10 using exponential smoothing with a = 0.60 and a week 1 initial forecast of 19.0 are (round your responses to two decimal places): Week 1 2 Demand 28 Forecast 19.0 19.6 24.04 31.22 28.09 28.04 32.82 26.33 24.93 b) For the forecast developed using exponential smoothing (a = 0.60 and initial forecast 19.0), the MAD = 4,99 sales (round your response to two decimal places). c) For the forecast developed using exponential smoothing (a = 0.60 and initial forecast 19.0), the tracking signal = (round your response to two decimal places). 4 8 10 3 27 5 26 6 28 7 36 9 24 19 36 22 20 19