A Regression Analysis Between Sales (In $1,000) and Advertising (In $\hat { y } = 80 + 5 x$

question 111

Multiple Choice

A regression analysis between sales (in $1,000) and advertising (in $1,000) resulted in the following least squares line: $\hat { y } = 80 + 5 x$ . This implies that:

• A)as advertising increases by $1,000, sales increases by $5,000.
• B)as advertising increases by $1,000, sales increases by $80,000.
• C)as advertising increases by $5, sales increases by $80.
• D)None of these choices.

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