Data Were Collected on Monthly Sales Revenues (In $\$ 1,000 \mathrm {~s}$

Multiple Choice

Data were collected on monthly sales revenues (in $\$ 1,000 \mathrm {~s}$ ) and monthly advertising expenditures $( \$ 100 \mathrm {~s} )$ for a sample of drug stores. The regression line relating revenues (Y) to advertising expenditure $( \mathrm { X } )$ is estimated to be $\hat { y } = - 48.3 + 9.00 x$ . The predicted sales revenue for a month in which $\$ 1,000$ was spent on advertising is

A) $\$ 50,000$ .
B) $\$ 851.70$ .
C) $\$ 8,951.70$ .
D) $\$ 41,700$ .
E) $\$ 90,000$ .