The Des Moines Register recently reported the ratings of high school sportsmanship as compiled by the Iowa High School Athletic Association. For each school the spectators and participants were rated by referees, where 1 = superior, and 5 = unsatisfactory. A regression analysis of the average scores given to wrestling spectators and wrestlers is shown below. 
a) Interpret the correlation between the ratings of spectators and wrestlers.
b) Interpret the coefficient of determination.
c) Interpret the value of the standard deviation about the least squares line.
Definitions:
Aggregate Supply Curve
A graphical representation showing the total quantity of goods and services that producers are willing and able to supply at different price levels in an economy.
Supply Shocks
Unexpected events that affect aggregate supply, sometimes only temporarily.
Inward
Refers to movements or directions towards the inside or center of something.
Expansionary Gap
A situation where the actual output of an economy exceeds its potential output at full employment, often leading to inflation.
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