At the start of the chapter, we talked about how risky and volatile airlines' operations were. Let's examine this further. Go to finance.yahoo.com. Enter AMR for American Airlines in the Get Quotes box. Go to Company Profile along the left-hand margin. 1. Click on Profile in the left-hand column and write a one-paragraph description of the company. 2. Scroll down and click on the Income Statement. Describe the pattern of change for Total Revenue and Net Income from Continuing Operations in one paragraph. 3. Next go to the Balance Sheet. In one sentence, describe the pattern of change in Stockholders' Equity and indicate whether this does or does not appear to be a matter of concern. 4. Click on Analyst Estimates. Do AMR's earnings estimates appear to be more or less promising for the future? 5. Finally, click on Competitors. How does AMR compare to the other airlines and the industry in terms of Operating Margin?