A movie theater owner operates a chain of cinemas in several markets in the southern U$.$S$.$

The owners would like to estimate weekly gross revenue as a function of advertising expenditures.

Data for a sample of eight markets for a recent week follow.

Advertising

Market

Weekly

Revenue

Television Newspaper

Mobile $98\mathrm{.}362$

Shreveport $49\mathrm{.}743\mathrm{.}5$

Jackson $78\mathrm{.}152$

Birmingham $122\mathrm{.}55\mathrm{.}34\mathrm{.}8$

Little Rock $127\mathrm{.}94\mathrm{.}64\mathrm{.}5$

Biloxi $99\mathrm{.}84\mathrm{.}52\mathrm{.}8$

New Orleans $243\mathrm{.}168\mathrm{.}9$

Baton Rouge $205\mathrm{.}77\mathrm{.}96\mathrm{.}3$