Is the Number of Games Won by a Major League $$\sum y = 1,134 , \quad \sum x = 3.642 , \sum y ^ { 2 } = 93,110 , \quad \sum x ^ { 2 } = .948622 , \text { and } \sum x y = 295.54$$

Essay

Is the number of games won by a major league baseball team in a season related to the team's batting average? Data from 14 teams were collected and the summary statistics yield: $$\sum y = 1,134 , \quad \sum x = 3.642 , \sum y ^ { 2 } = 93,110 , \quad \sum x ^ { 2 } = .948622 , \text { and } \sum x y = 295.54$$
Find the least squares prediction equation for predicting the number of games won, $y$ , using a straight-line relationship with the team's batting average, $x$ .