A regression analysis between sales (in $1000) and advertising (in $100) resulted in the following least squares line: $\hat { y } = 77 + 8 x$ . This implies that if advertising is $600, then the predicted amount of sales (in dollars) is $125,000.

Question

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The predicted amount of sales is $125,000 when advertising is $600, which is equal to 600 * 8 + 77 = 125,000.

A Regression Analysis Between Sales (In $1000) and Advertising (In y^=77+8x\hat { y } = 77 + 8 xy^​=77+8x

A Regression Analysis Between Sales (In $1000) and Advertising (In $\hat { y } = 77 + 8 x$