a) The expected (estimated) time for activity C is

b) The variance for activity C is

c) Based on the calculation of the estimated times, the critical path is

d) The estimated time for the critical path is

e) The activity variance along the critical path is

f) Using the standard normal table, the probability that Hopkins Hospitality will finish the project in

42 weeks or less is ______

Problem 3.17b Question Help Ross Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels. Time (weeks) b Immediate Predecessor(s) Activity Activity a m a 10 4 1 8 5 1 5 8 8 12 6 3 8 24 16 9 4 20 . A A B C, E U I - DV Time (weeks) mb 3 3 4 1 1 1 7 7 7 4 8 14 3 3 4 Immediate Predecessor(s) C, E F F D, G, H I, J