No worries, I wasn't really trying to explain it anyways, as much as seeking confirmation from the rest of HN that this question is ill specified. Judging from

No worries, I wasn't really trying to explain it anyways, as much as seeking confirmation from the rest of HN that this question is ill specified. Judging from responses, yes, it is. If "binomial distribution" and "confidence interval" are unfamiliar terms then you probably are not prepared to pass OP's "statistical reasoning test" regardless. I think most engineers wouldn't, and I only understood the intent of question 1 because my pandemic lockdown project was reading a stats textbook cover to cover.