Does the number of points a person earns on the final exam in introductory psychology depend on whether the person is a psychology major? In a number of psychology classes, you collect data on the final exam scores of students who are psychology majors and students who are not psychology majors. What would you use to analyze these data?

a. paired-samples t test

b. chi-square test for goodness of fit

c. Pearson correlation coefficient

d. independent-samples t test