b) For the forecast developed using exponential smoothing (a= 55 and initial forecast 20) the MAD = ____ Sales (round your response to two decimal places) c) For the forecast developed using exponential smoothing (a=55 and initial forecast 20) the tracking signal = ___ (round your response to two decimal places)

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: 4 7 8 Week Demand 1 20 2 20 3 27 5 26 6 29 9 25 10 29 36 37 24 a) The forecast for weeks 2 through 10 using exponential smoothing with a = 0.55 and a week 1 initial forecast of 20.0 are (round your responses to two decimal places): 6 7 10 Week 1 Demand 20 Forecast 20.0 2 20 3 27 4 36 5 26 8 24 9 25 29 37 29