Chapter 14, Problem 15E

Name the sampling method that best describes each situation. Choose your answer from the following (A) simple random sampling, (B) convenience sampling, (C) quota sampling, (D) stratified sampling, (E) census.

a. George wants to know how the rest of the class did on the last quiz. He peeks at the scores of a few students sitting right next to him. Based on what he sees, he concludes that nobody did very well.

b. Eureka High School has 400 freshmen, 300 sophomores, 300 juniors, and 200 seniors. The student newspaper conducts a poll asking students if the football coach should be fired. The student newspaper selects 20 freshmen, 15 sophomores, 15 juniors, and 10 seniors for the poll.

c. For the last football game of the season, the coach chooses the three captains by putting the names of all the players in a hat and drawing three names. (Maybe that's why they are trying to fire him!)

d. For the last football game of the season, the coach chooses the three captains by putting the names of all the seniors in a hat and drawing three names.