A project has four activities (a, b, c, and

d. that must be performed sequentially. the probability distributions for the time required to complete each of the activities are as follows: activity activity time (weeks) probability a 5 0.25 6 0.35 7 0.25 8 0.15 b 3 0.20 5 0.55 7 0.25 c 10 0.10 12 0.25 14 0.40 16 0.20 18 0.05 d 10 0.60 12 0.40 the attached file, project, contains a spreadsheet simulation model to estimate the average length of the project and the standard deviation of the project length. create 2000 simulation trials. what is the project length? round your answer to one decimal place.