The data set for a random sample of 10 baseball player's heights compared to their shoe sizes is summarized in the table.
Shoe Size (U.S.) Height (inches)
7 64
10 69
12 72
8 67
9.5 69
10 70
11.5 75
12.5 73
13.5 71
10 68
Part A: What is the equation of the least-squares regression line? (4 points)
Part B: If a baseball player wears a size 9 and is 71 inches tall, what is their residual? Show all mathematical work. (3 points)
Part C: Interpret the meaning of the residual from part B. (3 points)
