For the data below: 
(a)Determine the least squares regression line.
(b)Determine the predicted value for 2004.
(c)Determine the MAD.
(d)Determine the unadjusted forecasting MSE.
Definitions:
X-Inefficiency
The difference between efficient behavior of businesses assumed or required by economic theory and their observed behavior in reality, often as a result of a lack of competitive pressure.
Winner-Takes-All Market
A market in which the dominant player captures almost all of the market share and benefits, leaving very little for other competitors.
Marginal Revenue Product
Incremental income earned by utilizing one more unit of a resource, like labor or capital.
Media Hype
The excessive promotion or sensationalism of news stories, products, or events in the media.
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