The time needed to complete a math examination is bell-shaped with a mean of 1212) minutes and a standard deviation of 15 minutes. a] What percentage of students will complete the exam in 'IDS minutes or less? % h] Assume that the class has 14D students and that the examination period is 1543 minutes in length. HowI man}.r students do you expect will not be able to complete the exam in the allotted time? Round answer to the nearest whole number. c} A student is classified as extremer "efficient" if the amount of time spent on the exam is the lowest [Ll 5% for the distribution. What is the upper limit for the time it takes an extremelyr "efficient" student to nish the exam