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Question
A regression analysis between sales (yin $1000) and advertising (xin dollars) resulted in the following equation
= 50,000 + 6xThe above equation implies that an
a. increase of $6 in advertising is associated with an increase of $6,000 in sales
b. increase of $1 in advertising is associated with an increase of $6 in sales
c. increase of $1 in advertising is associated with an increase of $56,000 in sales
d. increase of $1 in advertising is associated with an increase of $6,000 in sales
Answer
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