Extra Credit Project Instruction: Use the table A posted on the blackboard. Question #1 You have a data set of {9, 5, 10, 7, 9, 10, 11, 8, 12, 9} to analyze. Calculate the z-scores for the raw score of 5, 8, and 12. Question #2 A normal distribution has a mean of 45 ( = 45) and a standard deviation of 10. At what percentile rank does a score of 50 have? Question #3 In the same distribution in Question #2, what is the score at the 32nd percentile (32%)? Question #4 What percent of cases in a normal distribution falls between Z = -1.00 and Z = 0.5? Question #5 What proportion of the scores falls between the score of 88 and 95 if this distribution is normal and has a mean of 85 and a standard deviation of 5