As a part of their customer- service program, United Airlines randomly chosen 10 pas-sengers from today's 9 A. M. Chicago- Tampa flight. Each and every sampled passenger is to be interviewed in depth regarding airport facilities, service, and so on. To identify the sam-ple, each passenger was given a number on boarding the aircraft. The numbers started with 001 and ended with 250.
a. Select 10 usable numbers at random
b. The sample of 10 could have been chosen using a systematic sample. Choose the first number, and then list the numbers to be interviewed.
c. Evaluate the two methods by giving the advantages and possible disadvantages.
d. In what other way could a random sample be selected from the 250 passengers?