Calculated the overall mean absolute deviation

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Month          Sales

January        100

Feburay         94

March          106

April               80

May               68

June              94

1. Develop forecasts for months April to July using a moving average model with AP=3 and then calculated the overall Mean Absolute Deviation (MAD) and Tracking Signal (TS) for months April to June.

2. With an alpha value of 0.3 and a starting forecast in month January equal to actual in month January, develop forecasts for months February t oJuly using exponential smoothing and then calculate the overall MAD and TS for months February to June.

3. Develop a linear regression equation to forecast the sales of the units and then calculate the number of units for month July.

Reference no: EM131122500

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