A Regression Analysis Between Sales (In $1000) and Advertising (In $\hat { y }$

Multiple Choice

A regression analysis between sales (in $1000) and advertising (in $100) yielded the least squares line $\hat { y }$ = 75 +6x. This implies that if $800 is spent on advertising, then the predicted amount of sales (in dollars) is:

A) $4875.
B) $123 000.
C) $487 500.
D) $12 300.