A project manager has compiled a list of major activities that will be required to install a computer information system in her firm. The list includes the precedence relationships and estimated completion time for each activity. Please compute the expected time and standard deviation for each path. R$.$ A project manager has compiled a list of major activities that will be required to install a computer information system in her firm. The list includes the precedence relationships and estimated completion time for each activity. Please compute the expected time and standard deviation for each path. $4$ Activity Immediate Predecessor Time in weeks Optimistic$-$Most likely$-$Pessimistic$)5-9-106-7-104-5-64-5-77-9-114-5-86-8-105-8-10$ B DE F GH End