(Solved): The following are historical demand data: \table[[,,ACTUAL],[YEAR,SEASON,DEMAND],[2011,Spring,205],[ ...

The following are historical demand data: \table[[,,ACTUAL],[YEAR,SEASON,DEMAND],[2011,Spring,205],[,Summer,142],[,Fall,371],[,Winter,580],[2012,Spring,470],[,Summer,281],[,Fall,692],[,Winter,958]] Use regression analysis on deseasonalized demand to forecast demand in summer 2013. (Do nc calculations. Round your answer to the nearest whole number.) Answer is complete but not entirely correct.

Forecast for summer