On-Time Airlines. From the FlightStats On-time Performance Report Summary, we found that, in July 2013, the top five North American airlines in terms of percentage of on-time arrivals were Hawaiian (H), Horizon (Z), Compass (C), Alaska (A), and Jazz (J).
(a) List the 10 possible samples ( without replacement ) of size 3 that can be obtained from the population of five airlines. Use the parenthetical abbreviations in your list.
(b) If a simple random sampling procedure is used to obtain a sample of three of these five airlines, what are the chances that it is the first sample on your list in part (a) ? the second sample? the tenth sample?
(c) Describe three methods for obtaining a simple random sample of three of these five airlines.
(d) Use one of the methods that you described in part (c) to obtain a simple random sample of three of these five airlines.