A forecasting model has produced the following forecasts


Question: A forecasting model has produced the following forecasts:

Period

Demand

Forecast

   Error

Abs.Error

January

120

110



February

110

115



March

115

120



April

125

115



Fill in the blanks above

- Calculate the mean absolute deviation (MAD) at the end of April.

- Calculate the average error at the end of April.

- Calculate the tracking signal at the end of April

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Basic Statistics: A forecasting model has produced the following forecasts
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