a. Graph A
b. Positive
c. Landscape Expenditures = -14.052 + 0.033 * Home Value
d. $33
e. $3,406.
a. The scatter diagram that represents the relationship between home value and landscaping expenditures is graph A.
b. The scatter plot developed in part (a) indicates a positive linear relationship between the two variables.
c. Using the least squares method, the estimated regression equation is: Landscape Expenditures = -14.052 + 0.033 * Home Value.
d. For every additional $1,000 in home value, an additional $33 will be spent on landscaping.
e. Using the equation estimated in part (c), the predicted landscaping expenditures for a home valued at $450,000 is approximately $3,406.