The student government is planning a concert featuring the rock band Bloodless Coup in 18 days. They make a list of all the tasks needed to prepare for the concert, including securing a venue, printing tickets, hiring staff, promotion, and more. Each task has a best, worst, and most likely number of days estimated for completion. Using PERT (Program Evaluation and Review Technique) analysis, they will determine the probability all preparations can be finished on time.