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Question
Calculate three forecasts using the following data. First, for periods 4 through 10, develop the exponentially smoothed forecasts using a forecast for period 3 (F3) of 120.0 and an alpha of 0.3. Second, calculate the three-period moving-average forecast for periods 4 through 10. Third, calculate the weighted moving average for periods 4 through 10, using weights of .60, .30, and .10. Calculate the mean absolute deviation (MAD) and the cumulative sum of forecast error (CFE) for each forecasting procedure. Which forecasting procedure would you select? Why?
| Month | Demand |
| 1 | 120 |
| 2 | 115 |
| 3 | 125 |
| 4 | 119 |
| 5 | 127 |
| 6 | 114 |
| 7 | 120 |
| 8 | 124 |
| 9 | 116 |
| 10 | 137 |
Answer
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Related questions
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Q:
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Q:
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Q:
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Q:
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Q:
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Q:
Construct a 3-sigma and R-chart for the length in centimeters of a part from the following table. Sample #
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Q:
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Q:
Consider this list of jobs that have just arrived and are ready for processing. They all require processing first on machine 1 and then on machine 2. Both machines are now idle. Develop a schedule that minimizes makespan and calculate this makespan time. Now assume that each job can be split into two jobs, each having half the duration on both machine 1 and machine 2. Using the original sequence that minimized average flow time, calculate the flow times for all split jobs What is the effect of this new schedule on the average flow time for these split jobs? Job
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14
6 2
11
12 3
16
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12
8 5
22
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13
15 7
10
12 8
8
13