As people entered a certain meeting, n persons were
Chapter 10, Problem 7(choose chapter or problem)
As people entered a certain meeting, n persons were selected at random, and each was asked either to name one of two political candidates she favored in a forthcoming election or to say undecided if she had no real preference. During the meeting, the people heard a speech on behalf of one of the candidates. After the meeting, each of the same n persons was again asked to express her opinion. Describe a method for evaluating the effectiveness of the speaker
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer