|Probability-and-statistics/228469: One personality test available on the World Wide Web has a subsection designed to assess the "honesty" of the test-taker. After taking the test and seeing your score for this subsection, you're interested in the mean score, , among the general population on this subsection. The website reports that is , but you believe that is less than . You decide to do a statistical test. You choose a random sample of people and have them take the personality test. You find that their mean score on the subsection is and that the standard deviation of their scores is .
Based on this information, answer the questions below.
Answer 234188 by me74(1) on 2010-07-30 04:07:04 (Show Source):