Question: The table below provides the actual demand and a forecast for the last 12 months of Atwater's Problem Creation Company. Calculate the Cumulative Forecast Error

The table below provides the actual demand and a forecast for the last 12 months of Atwater's Problem Creation Company. Calculate the Cumulative Forecast Error and the Tracking Signal values for the last 12 months. Is the forecast Biased? Does it need to be replaced?

D G ouw 1 Problem Creation Company. Calculate the Cumulative Forecast Error and the Tracking Signal values for Actual New Forecast Abs. Cum Abs Month Demand Forecast Error CFE Error Error MAD T.S. 4 1 January 2000 1980 2 February 2400 2340 6 3 March 2300 2350 7 4 April 1800 1780 5 May 3300 3240 6 June 4425 4560 107 1900 1890 11 8 August 2000 2100 12 9 September 2200 1900 13 10 October 2200 1730 14 11 November 3325 15 12 December 1700 1870 16 17 July 3280

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