C. For the forecast developed using exponential smoothing (a=0.50 and initial forecast 21.0), the tracking signal = ( round your response to two decimal places)

Need help with B and C

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: 1 2 3 5 6 7 8 9 10 Week Demand 21 20 29 37 26 29 36 24 24 28 a) The forecast for weeks 2 through 10 using exponential smoothing with a = 0.50 and a week 1 initial forecast of 21.0 are (round your responses to two decimal places): Week 1 2 3 4 5 6 7 8 9 10 Demand 21 20 29 37 26 29 36 24 24 28 Forecast 21.0 21 20.5 24.75 30.88 28.44 28.72 32.36 28.18 26.09 sales (round your response to two decimal b) For the forecast developed using exponential smoothing (a = 0.50 and initial forecast 21.0), the MAD = places)