Question 630638
 A regression analysis between sales (Y) and advertising (X) (both in dollars) resulted in the following equation:
= 100 + 2000X 
The above equation implies that an
Answer
A. increase of $1 in advertising is correlated with an increase of $2,000 in sales. 
B. increase of $1 in advertising is correlated with an increase of $2 in sales. 
C. increase of $1 in advertising is correlated with an increase of $100 in sales. 
D. increase of $1 in advertising is correlated with an increase of $2100 in sales.
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Ans: A
Comment: slope is always the amount y changes (sales) when x (ads) 
increases by one.

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Cheers,
Stan H.