Hi P.S.,
Like previous student post, I also had (A) & (D) as answer contenders. I read the previous explanation of using the Variance Test but I'm having trouble understanding how the Variance test proves that (D) is incorrect. I want to make sure I'm using the Variance Test correctly.
(D) If YES, the shopper thought that the clerk gave shopper extra $ intentionally & shopper returned the $, that wouldn't make the shopper dishonest. Shopper isn't dishonest because shopper know clerk did it on purpose so is returning it for other reasons. Doesn't this weaken the conclusion and show that the shopper
wasn't dishonest?
(D) If NO, the shopper didn't think that the clerk gave shopper extra $ (meaning the shopper thought it was a mistake from the clerk) and the shopper returned the $ for this reason. The shopper returning the $ because shopper thought the clerk made a mistake means shopper is honest (not dishonest). Doesn't this also weaken the conclusion by showing that the shopper
was honest (and not dishonest like the conclusion states).
Is (D) wrong because the answer to both yes & no Variance Test weakens the conclusion? Or how does the Variance Test prove (D) is incorrect?
Please help me and determine whether I'm using Variance Test correctly or not.
Thanks in advance!