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Question 7: Name the sampling method used in each of the following situations: 1. A woman in the airport is handing out questionnaires to travelers asking them to evaluate the airport's service. She does not ask travelers who are hurrying through the airport with their hands full of luggage, but instead asks all travelers sitting near gates and who are not taking naps while they wait. 2. A teacher wants to know if her students are doing homework so she randomly selects rows 2 and 5 and then calls on all students in row 2 and all students in row 5 to present the solution to homework problems to the class. 3. The marketing manager for an electronics chain store wants information about the ages of its customers. Over the next two weeks, at each store location, 100 randomly selected customers are given questionnaires to fill out which asks for information about age, as well as about other variables of interest. 4. The librarian at a public library wants to determine what proportion of the library users are children. The librarian has a tally sheet on which she marks whether the books are checked out by an adult or a child. She records this data for every 4th patron who checks out books. 5. A political party wants to know the reaction of voters to a debate between the candidates. The day after the debate, the party's polling staff called 1200 randomly selected phone numbers. If a registered voter answers the phone or is available to come to the phone, that registered voter is asked who he/she intends to vote for and whether the debate changed his/her opinion of the candidates