Twenty randomly selected statistics students were given 15 multiple choice questions and 15 open-ended questions,all on the same material. The professor was interested in determining if students scored higher on the multiple choice questions. This experiment is an example of ________.
A)a one-sample test of means
B)a two-sample test of means
C)a paired t-test
D)a test of proportions

Question

Quizplus · Accepted Answer

This experiment is an example of a paired t-test because each student's performance on the multiple choice questions is directly compared to their performance on the open-ended questions. This pairing of data points (the two sets of scores for each student) is what characterizes a paired t-test.

Twenty Randomly Selected Statistics Students Were Given 15 Multiple Choice