A Regression Analysis Between Sales (In $1000)and Advertising (In $)Resulted

Multiple Choice

A regression analysis between sales (in $1000) and advertising (in $) resulted in the following least squares line: = 80,000 + 4x.This implies that:

A) an increase of $1 in advertising is expected to result in an increase of $4 in sales.
B) an increase of $4 in advertising is expected to result in an increase of $4,000 in sales.
C) an increase of $1 in advertising is expected to result in an increase of $80,000 in sales.
D) an increase of $1 in advertising is expected to result in an increase of $4,000 in sales.