Quiz

A study was done to investigate the relationship between the hours per week that people spend commuting to work and the amount of money that people make.  The equation of the regression line was found to be:

        y  =  29,000 + 3,000x

R² was found to be 0.45. 

A.  Estimate the amount of money that a person who commutes 4 hours per week will make.

B.  Interpret the slope in the context of the question.

C.  Interpret the y-intercept in the context of the question.

D.  Interpret R² in terms of how it explains variation of the amount of money that people make.