Professor Davis teaches a course in supply chain management at North Texas State University. She is scheduled to give her class of 32 students a final exam on the last day of exam week, and she is leaving town the same day. She is concerned about her ability to finish grading he exams. From past experience, she knows the first exam will take her about 20 minutes to grade. She estimates her learning curve to be about 88 percent. What is the expected grading time for the 16th exam? What is your estimate of her total grading time? What is the average grading time for the entire batch of exams?