Answer......

2. Research has found when student's start school earlier they get less sleep, which is related to decrease in cognitive functioning. Suppose you conducted a study to see if student's class performance was poorer when they took a class in the morning compared to the evening. Twenty students were randomly assigned to one of the two conditions: the 7:00 am morning class, or the 7:00 pm evening class. Performance was measured by their exam scores. Exam Scores Morning Evening 60 83 87 74 74 82 70 78 65 81 85 76 60 82 57 63 60 87 92e. Are their significant differences between the groups? YES or NO f. Fail to reject the null or reject the null? g. Report the results in APA format