A Regression Analysis Between Sales (Y in $1000) and Advertising

A regression analysis between sales (Y in $1000) and advertising (X in dollars) resulted in the following equation = 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

Correct Answer:

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