Teh marketing director collects 36 weekly observations on S,A, and R to estimate the following multiple regression equation.

S = a + bA + cR

where S, A, and R. are measured in dollars per week.

2 answers

How well do you follow directions?

Your school subject is not Ashford University.

I doubt if your first name is alberta long.

Perhaps if you read your text more carefully, you'll figure out the answer to your question.
Cheat here:
http://www.justanswer.com/questions/1bvwy-director-marketing-vanguard

Now ask yourself, is getting the A on the assignment (and probably the course) worth anything?