Question: A statistics teacher believes that students in an evening statistics class score higher than the students in a day class. The results of a special exam are shown below. Can the teacher conclude that the evening students have a higher score? Use α = 0.01.

Day Students Evening Students

n1 = 36 n2 = 41

x-bar1 = 78 x-bar2 = 81

s1 = 5.8 s2 = 6.3