Practice Example 5 (Reference for #10, #13) A large lecture has 1000 students. On a midterm exam, the class average was 70. It is suggested that the early morning section has more serious students, and would therefore have higher scores This section has 36 students, and their average was 75 and a standard deviation of 12. The question is whether this samp data gives sufficient evidence to support that the early morning section has higher scores. a) State hypotheses b) Specify the significant level: The a = 0.05 level of significance c) Identify the sampling distribution under null hypothesis: d) Is the sample data unusual based on the sampling distribution