American League baseball games are played under the designated hitter rule, meaning that weak-hitting pitchers do not come to bat. Baseball owners believe that the designated hitter rule means more runs scored, which in turn means higher attendance. Is there evidence that more fans attend games if the teams score more runs? Data collected from American League games during the 2006 season indicate a correlation of 0.667 between runs scored and the number of people at the game. (http://mlb.mlb.com)

a) Does the scatterplot indicate that it's appropriate to calculate a correlation? Explain.

b) Describe the association between attendance and runs scored.

c) Does this association prove that the owners are right that more fans will come to games if the teams score more runs?