Answer
The residual for San Francisco is 0.083. Since this residual is positive, we can say that San Francisco has an above average winning percentage for teams with an on-base percentage of 0.321.
Work Step by Step
i) Calculate predicted y value
$\hat{y} = 3.4722x - 0.6294$
$\hat{y} = 3.4722(0.321) - 0.6294$
$\hat{y} \approx 0.485$
ii) Calculate Residual
Residual = Observed value - predicted value
Residual = 0.568 - 0.485
Residual = 0.083
iii) The residual for San Francisco is 0.083. Since this residual is positive, we can say that San Francisco has an above average winning percentage for teams with an on-base percentage of 0.321.
