When Students Act Like FYO's

Prof. BlogAuthor-

Just to clarify a question. In class you said the test was on Chapters 6,7,8,9,11,12,13 and that we should focus on the second half. I took that as focus on chapters 9, 11,12,13 but I was talking to another student and he took that as focus on the second half of the semester: meaning everything after the first test (all chapters)?
Which is it?

Thanks, Pushing It