Question

2. A researcher was interested in differences in academic performance by major. Specifically, he wanted to know if average GPA differed between those students who major in Biology versus those who choose to pursue a major in Psychology. This being an exploratory study, the researcher did not have a specific prediction as to which group would have higher average GPAs but believed that there would be a difference. The GPA data from the students are listed in the table below.

Biology	Psychology
2.91	3.00
2.86	3.80
3.80	3.98
3.00	3.23
2.80	3.80
3.80	4.00
2.84	3.87
3.70	3.30
3.31	3.72

1. What statistical test will you run on these data?

2. What are the assumptions of your chosen statistical test?

3. Use SPSS to test the assumptions of your chosen statistical approach. Report the results of your tests of assumptions. Have the assumptions been met?

4. Please write both the null and research hypotheses for this research question in equation and sentence form.

Answer 1