12. According to collegeraptor.com in the 2015 to 2016 school year, the mean ACT test score was 21 with a standard deviation of 5.4. (ACT test scores range from 1 to 36). a. Complete the normal curve above using the exam mean and standard deviation. (6pts) b. What percent of test takers scored above 26.4? (4 pts) c. If 10,000 test scores were sampled, how many would we expect to be below a 10.2?(4 pts) d. The average ACT test score of a student currently attending University of Michigan is 31. Calculate the z- score for this average ACT score. (2pts) What does the z-score tells you the students at the University of Michigan? (2 pts)