At a large university, 20% of a random sample of male students have an overall grade point average (GPA) of 3.5 or higher. A random sample of female student records found that 25% had a GPA of 3.5 or higher. The president of the university wants to determine whether there is evidence of a difference in grades between males and females. What would be the null and alternative hypotheses for this situation?

H0:p1 p2= 0 and Ha:p1 p2 0

H0:p1 p2= 0 and Ha:p1 p2> 0

H0:p1 p2= 0 and Ha:p1 p2< 0

H0:p1 p2> 0 and Ha:p1 p2= 0

H0:p1 p2> 0 and Ha:p1 p2 0