Answer
The least-squares line for predicting mean Mathematics SAT score from mean teacher salary is:
MathSAT = 472.8 + 0.002022 (Avg. teacher salaries in 2013)
This implies that Math SAT score will increase by 0.002 with each increase of $1 in teacher salaries on average.
Work Step by Step
In Minitab, select regression from the stats menu, and then select fitted line plot.