Question 11.80
5. Grades and the SAT. In its “Profile of College-Bound Seniors,” the College Board provided the following data on high school grade point average and gender for the students taking the SAT exam. We are interested in testing whether the proportion of females is the same across the six grade categories. 
highschoolgpa
| High school grade point average | ||||||
|---|---|---|---|---|---|---|
| Gender | A+ | A | A− | B | C | D–F |
| Female | 60 | 62 | 59 | 53 | 43 | 43 |
| Male | 40 | 38 | 41 | 47 | 57 | 57 |
- Before you perform any calculations, what result might we expect? Examine the table carefully to see whether you can identify any differences in the proportions of females.
- Test whether the proportion of females is the same across the six grade categories, using level of significance .