A university department chair believes that the afternoon section of a large survey class has a consistently higher proportion of students that pass the class compared to the morning section. The chair checks a random sample of student records from each section. The results of the data collected are shown below. Morning section Afternoon section Successes 419 Successes 532 Observations 500 Observations 600 Proportion 0.838 Proportion 0.887 Confidence level 95% z-score 2.366 p-value 0.0089 -3 -2 -1 0 1 2 3 P = EX: 1.234 + Z = Morning section samples: nM = Ex: 9 Afternoon section samples: nA = Sample proportion for morning section samples: PM =EX: 1.234 Sample proportion for afternoon section samples: P A =