The following are monthly actual and forecast demand levels for May through Dece
ID: 3203690 • Letter: T
Question
The following are monthly actual and forecast demand levels for May through December for units of a product manufactured by the D. Bishop Company in Des Moines:
Month
Actual Demand
Forecast Demand
May
105105
100100
June
7878
108108
July
108108
101101
August
112112
104104
September
108108
104104
October
106106
106106
November
120120
105105
December
120120
107107
For the given forecast, the tracking signal = MADS (round your response to two decimal places).
Month
Actual Demand
Forecast Demand
May
105105
100100
June
7878
108108
July
108108
101101
August
112112
104104
September
108108
104104
October
106106
106106
November
120120
105105
December
120120
107107
For the given forecast, the tracking signal = MADS (round your response to two decimal places).
Explanation / Answer
Month
Actual Demand
Forecast Demand
|Ad- Fd|
(Ad- Fd)
May
105
100
5
5
June
78
108
30
-30
July
108
101
7
7
August
112
104
8
8
September
108
104
4
4
October
106
106
0
0
November
120
105
15
15
December
120
107
13
13
Sum=82
Sum=22
So the tracking signal MADS = 82/8 =10.25
` = 22/8 =2.75
Month
Actual Demand
Forecast Demand
|Ad- Fd|
(Ad- Fd)
May
105
100
5
5
June
78
108
30
-30
July
108
101
7
7
August
112
104
8
8
September
108
104
4
4
October
106
106
0
0
November
120
105
15
15
December
120
107
13
13
Sum=82
Sum=22
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