Worksheet 6 STAB23 - Introduction to Statistics for Social Sciences Full name: Student Number: (10 marks) The Chapin Social Insight test evaluates how accurately a subject appraises other people. In the reference population used to develop the test, scores are approximately normally distributed with mean 25 and standard deviation 5. a (a) Calculate the proportion of the population that has scores below 17 on this test. b The administer of Chapin test wants to recruit those who score in the top 10% for evaluation purposes. Approximately, what is the minimum score needed to be consid ered