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Which one is correct about the question, Is newspaper ad effective in raising sales? Group of answer choices No , because newspaper ad has
Which one is correct about the question, Is newspaper ad effective in raising sales?
Group of answer choices
No because newspaper ad has a weaker effect on sales than constant.
Yes, because the coefficient of newspaper ad is positive.
No because newspaper ad does not affect sales.
Yes, because newspaper ad has a stronger effect on sales than radio ad
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