Tax Preparation System Problem (use for first 4 questions) G5B student representatives are organizing a tax preparation system. They expect to receive 100 students, coming to the system within 4 hours at a constant rate. The process consists of a check-in station, where there is a single server that takes 2 minutes to decide whether the student has all the information needed to fill out the forms or not. From previous experience, they know that 80% will be OK, and then, they will go to one of the analysts to complete the tax forms. The other 20% will need to gather the extra info, a process that they do by themselves, and that will take exactly 1 hour. After that hour, they will join the queue for the analysts. There are 5 analysts and each takes 15 minutes to serve a student