(3) z-score in complexchoicesAssumethere are 25 subjects that have to find 4 identical wines in a sample of 20 wines.
(a) What is the random chance for any person of being right?
(b)  Assume only 1 of 25 people found the matching 4 wines. Is this  different from random? Calculate the z-score and interpret it referring  to its significance.