Famous psychic, television personality Sylvia Browne is invited to Oprah Winfrey show to demonstrate her gift in a live TV broadcast. The process entails asking Sylvia a series of 20 independent questions with yes/no answers. The questions would be of the nature that she could not have any way of knowing the answer from prior knowledge. She will be considered psychic if she correctly answers more than a specified number (called the cut-off) of the questions. The cut-off must be set so that the chance of guessing that number or more is no greater than 5 percent. The cut-off value should be: Question 26 options: Can't be determined without more information. 14 12 10