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

Multiple Choice

A regression analysis between sales (in $1000) and advertising (in $) resulted in the following least squares line: = 80,000 + 5x. This implies that:

A) an increase of $1 in advertising is expected, on average, to result in an increase of $5 in sales
B) an increase of $5 in advertising is expected, on average, to result in an increase of $5,000 in sales
C) an increase of $1 in advertising is expected, on average, to result in an increase of $80,005 in sales
D) an increase of $1 in advertising is expected, on average, to result in an increase of $5,000 in sales
E) all of these