Part A: What is the equation of the least-squares regression line? (4 points)
Part B: If a basketball player wears a size 11.5 and is 73 inches tall, what their residual? Show all mathematical work. (3 points)
Part C: Interpret the meaning of the residual from part B. (3 points)

Shoe Size (U.S.) Height (inches)
7 64.5
10 70
12.5 72
8.5 71
9 69
10 70
11 75
12.5 69
13 71
10.5 68