solve the true and false, please

TRUE/FALSE Questions (10 points) (5 questions, 2 polnts each) Write "T" or "F" in the spaces provided before each statement Every network has at least one critical path. le coure In PERT analysis, the identification of the critical path can be incorrect if a non-critical activity takes substantially more than its expected time. The PERT pessimistic time estimate is an estimate of the minimum time an activity will require. The standard deviation of project duration is the average of the standard deviation of all activities on the critical path