An athletic director believes that more than 50 percent of the students in a certain school district exercise at least 3.5 hours per week. To investigate the belief, the director selected a random sample of 40 students in the school district and found that 60 percent of the students in the sample exercise at least 3.5 hours per week. Let p represent the proportion of all students in the school district who exercise at least 3.5 hours per week, Which of the following is the most appropriate alternative hypothesis to test the director's claim?
A. Hₐ: p=0.5
B. Hₐ: p > 0.5
C. Hₐ: p < 0.5
D. Hₐ: p=0.6
E. Hₐ : p>0.6