Assignment:
Q: 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: 1 2 3 4 5 6 7 8 9 10
Demand: 21 21 27 36 24 28 35 22 24 28
A) The forecast for weeks 2 through 10 using exponential smoothing with alphaa = 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 21 27 36 24 28 35 22 24 28
Forecast: 21.0 __ __ __ __ __ __ __ __ __
Mean absolute deviation is the average of "absolute error." Based on the given information, the total absolute error for this developed forecast
For the forecast developed using exponential smoothing(alphaa = 0.50 and initial forecast 20.0 ), the MAD
The tracking signal can be calculated using the following relationship:
EQU: Tracing Signal equals StartFraction Cumulative Error Over MAD EndFraction equals StartFraction Summation from nothing to nothing left parenthesis Actual Demand in Period i minus Forecast in Period i right parenthesis Over MAD EndFractionTracing Signal=Cumulative ErrorMAD=(Actual Demand in Period i - Forecast in Period i)MAD.
For the forecast developed, the MAD is found to be 4.99. The cumulative error
For the forecast developed using exponential smoothing (alphaa = 0.50 and initial forecast 20.0), the tracking signal