Please answer question photographed as part 1.

Part 2:

for the forecast developed using exponential smoothing (0.50 and a week 1 initial forecast 20.0) the MAD = ? sales (round to teo decimal places)

part 3:

for the forecast developed using exponential smoothing (0.50 and initial forecast of 20.0) the tracking signal = ? (round 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: 1 2 3 4 5 6 9 Week Demand 7 35 8 22 10 28 20 23 28 36 24 29 25 a) The forecast for weeks 2 through 10 using exponential smoothing with a = 0.50 and a week 1 initial forecast of 20.0 are (round your responses to two decimal places): 1 3 4 9 Week Demand 2 23 5 24 6 29 7 35 8 22 10 28 20 28 36 25 Forecast 20.0