Question

A regress analysis between sales (Y in $1000) and advertisting (X in dollars) resulted in the following equation 
^Y = 30,000 + 4 X 
The above equation implies that an 
A) increase of $4 in advertising is associated with an increase of $4,000 in sales.
B) increase of $1 in advertising is associated with an increase of $4 in sales.
C) increase of $1 in advertising is associated with an increase of $34,000 in sales.
D) increase of $1 in advertising is associated with an increase of $4,000 in sales.

Answer 1

i think c is the true
thank you