Lenovo uses the ZX-81 chip in some of its laptop computers. The prices for the c
ID: 467762 • Letter: L
Question
Lenovo uses the ZX-81 chip in some of its laptop computers. The prices for the chip during the last 12 months were as follows: This exercise contains only. With alpha = 0.1 and the initial forecast for October of $1.78, using exponential smoothing, the forecast for periods 11 and 12 is (round your responses to two decimal places): With alpha = 0.3 and the initial forecast for October of $1.76, using exponential smoothing, the forecast for periods 11 and 12 is (round your responses to two decimal places): With alpha = 0.5 and the initial forecast for October of $1.72, using exponential smoothing, the forecast for periods 11 and 12 is (round your responses to two decimal places): Based on the months of October. November, and December, the mean absolute deviation using exponential smoothing where a = 0.1 and the initial forecast for October = $1 Based on the months of October. November, and December, the mean absolute deviation using exponential smoothing where a = 0.3 and the initial forecast for October = $1.78 is $ 0.118 (round your response to three decimal places) Based on the months of October, November, and December, the mean absolute deviation using exponential smoothing where alpha = 0.3 and the initial forecast for October = $1.76 is $ (Round your response to three decimal places)Explanation / Answer
Exponential Smoothing (alpha = 0.3)
Month
Actual
Forecast
Absolute Forecast Error |Et = At - Ft|
October
1.57
1.76
0.19
November
1.62
1.7
0.08
December
1.75
1.69
0.06
Total
0.33
Mean Absolute Deviation (MAD) = average of the absolute value of forecast deviation
MAD = 0.33/3 = 0.11
MAD = 0.11
Month
Actual
Forecast
Absolute Forecast Error |Et = At - Ft|
October
1.57
1.76
0.19
November
1.62
1.7
0.08
December
1.75
1.69
0.06
Total
0.33
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