Question

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 test of proportions
b. a one-sample test of means
c. a paired t-test
d. a two-sample test of means

Answer 1

The correct answer is letter "A": a paired t-test.

Step-by-step explanation:

A paired t-test is a statistical approach that aims to verify if the difference between two types of research is zero. In a paired t-test, each variable being studied is evaluated twice using different techniques, there is where the variables can be paired to later be jointly analyzed.