Indicate whether each of the following companies is primarily a service, merchandise, or manufacturing business. If you are unfamiliar with the company, you may use the Internet to locate the company's home page or use the finance Web site of Yahoo.com.
1. Alcoa 6. CVS
2. AT&T 7. Dow Chemical
3. Boeing 8. FedEx
4. Caterpillar 9. First Republic Bank
5. Citigroup 10. Ford Motor
11. The Gap 14. Procter & Gamble
12. Hilton Hotels 15. Sears Roebuck
13. H&R Block Inc.