GATE ME 2021 Set 2 — Question 53
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Industrial Engineering → Production Planning & Control → Forecasting Models
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Question
The demand and forecast of an item for five months are given in the table.
The Mean Absolute Percent Error (MAPE) in the forecast is __________ % (round off to two decimal places)
| Month | Demand | Forecast |
|---|---|---|
| April | 225 | 200 |
| May | 220 | 240 |
| June | 285 | 300 |
| July | 290 | 270 |
| August | 250 | 230 |
Correct answer
6 to 10
Solution
Mean Absolute Percent Error (MAPE) is calculated as:Calculating for each month:
- April:
- May:
- June:
- July:
- August:
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