Professor Jones noticed that female students were more punctual than males in the classes that he taught. So, he began to keep track for a week in each class, how many male and female students came in after the class was scheduled to begin. His results supported his hypothesis. Steve is using:

Which of the following is an executive check on the powers of the judicial branch of government? a. presides over senate during hearing to impeach the president b. enforces term limits for supreme court justices c. nominates supreme court justices and federal judges d. casts tie-breaking vote if the supreme court cannot reach a verdict