13. Samuel Bridge Company wants to compare the accuracy of two methods that it has used to forecast yearly profits. Forecasts of yearly profits from 2006 through 2010 are shown below against the actual productions. Comment on their forecast accuracy.

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Year Actual profits (million) Method A forecasts (million) Method B forecast (million) 2006 10 12 11 2007 2008 2009 2010 2658 15 16 7 10 7 14 18 5