Does a Person's Letter Grade in Statistics Depend on Whether

Multiple Choice

Does a person's letter grade in statistics depend on whether he or she is a member of a Greek organization? In three statistics classes, data is collected on the letter grades of students belonging to Greek organizations and of students who are not members.Which of these is the null hypothesis for this study?

A) Members and nonmembers of Greek organizations do not tend to differ in letter grades.
B) Members and nonmembers of Greek organizations tend to differ in letter grades.
C) There is a relationship between Greek organization membership and letter grade.
D) The distributions of letter grades for members and nonmembers of Greek organizations is the same.