A statistics course. An instructor is interested in knowing whether a recent exam is viewed by the students as fair. There are 40 students in the class. The instructor received the opinions of 3 students who remained after class one day to complain about the exam.
(a) What is the population for this study?
(b) What is the sample?
(c) Is the sample a random sample? Explain why or why not.
(d) Do you think that the instructor should conclude that the opinions of the 3 students who remained after class represent those of the entire class? Explain why or why not.