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FORECAST ACTUAL WEEK DEMAND DEMAND 1234567∞ 135 132 135 128 142 147 140 157 142 177 152 167 145 184 147 204

FORECAST ACTUAL WEEK DEMAND DEMAND 1234567∞ 135 132 135 128 142 147 140 157 142 177 152 167 145 184 147 204

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Harlen Industries has a simple forecasting model: Take the actual demand for the same month last year and divide that by the number of fractional weeks in that month. This gives the average weekly demand for that month. This weekly average is used as the weekly forecast for the same month this year. This technique was used to forecast eight weeks for this year, which are shown in the following tables along with the actual demand that occurred.

The following eight weeks show the forecast (based on last year) and the demand that actually occurred (picture attached):

Calculate the MAD and tracking signal for each week.

FORECAST ACTUAL WEEK DEMAND DEMAND 1234567∞ 135 132 135 128 142 147 140 157 142 177 152 167 145 184 147 204
Transcribed Image Text:FORECAST ACTUAL WEEK DEMAND DEMAND 1234567∞ 135 132 135 128 142 147 140 157 142 177 152 167 145 184 147 204
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