Here is one more from the 2019 Specialist Exam 2, once again courtesy of student PURJ (who is vetting the exams much better than the exam vetters). It consists of the last four parts of Q6, the final question on the exam, concerning a machine that packages noodles. The answers from the examination report appear below the questions.
f) . (01/11/21 – brackets fixed.)
OK, I mucked this one up. There is no crap here of which I am aware. (Well, it’s stats, …)
The issue is around part (f). The probability equation gives , and the question is whether to round up or round down. The examination report correctly rounds up, which ensures to give a value where H0 is still not rejected. I got turned around and figured otherwise.
I’m sorry for the screw up.
Rule Number 1: There’s always crap; it’s just a question of where.
Thanks to SRK for point out the corresponding question, 6(e), on the 2018 Exam. In that case, the examination report indicates, without a word of explanation, that both the rounded up and rounded down answer were accepted. Then, the next year, it is implied, without a word of explanation, that only the correct rounding was accepted. These people are nuts.