Question: Problem 18-23 (Algo) After using your forecasting model for six months, you decide to test it using MAD and a tracking signal. Here are the

Problem 18-23 (Algo) After using your forecasting model for six months, you decide to test it using MAD and a tracking signal. Here are the forecast and actual demands for the six-month period: PERIOD FORECAST ACTUAL May 420 510 June 470 525 July 520 410 August 625 510 September 645 670 October 695 610 a. Find the tracking signal. (Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.)

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