Kaitlin is in her first semester at a certain university and is taking a calculus course with a large enrollment. She just took the first midterm exam and is nervous about her score. Among all of the students in the course, the mean of the exam was 62 with a standard deviation of 3. Kaitlin scored a 67 on this exam. (a) Find the z-score of Kaitlin's exam score relative to the exam scores among all the students in the course. Round your X 5 answer to two decimal places. z= (b) Fill in the blanks to interpret the z-score of Kaitlin's exam score. Make sure to express your answer in terms of a positive number of standard deviations. Kaitlin's exam score was standard deviations (Choose one) the mean exam score among all students in the course