Question 7 (1 point) A regression analysis between sales, y. (in $10,000) and advertising, x, (in $10,000) resulted in the following line: y = 5x+1100. This implies that: As advertising increases by $5, sales increases by $1.100 As advertising increases by $10,000, sales increase by $50,000 As advertising increases by $10,000, sales increase by $1,100 None of these choices