Which of the following represent the mill and alternative hypothesis necessary to test the students' belief?

Researchers have claimed that the average number of headaches per student during a semester of Statistics is 14. Statistics students believe the average is higher. In a sample of n = 15 students the mean is 19 headaches with a deviation of 1.9, Which of the following represent the null and alternative hypotheses necessary to test the students' belief? (A) Ho: H = 14 vs. Ha: H > 14 (B) Ho: H = 14 vs. Ha: u