1. Select an airline (or airlines) from the list below and provide an example of a marketing research scenario where an independent samples t-test should be used. Also, give an example of a marketing research scenario for these airlines where a paired samples t-test should be used.
   1. American Airlines
   2. British Airways
   3. Frontier Airlines
   4. Qatar Airways
   5. Ryanair
   6. Singapore Airlines
   7. Southwest Airlines
   8. United Airlines
   9. Airline of your choice