Use Excel and show formulas used

From the given table of activities and associated times, create a PERT/CPM diagram and complete the forward and backward passes Immediate Predecessor ActivityDescription Critical Path = Prepare Blue Print Receive Permits Prepare Ground Create Press ReleaseB Cement Work Steel Work Cut Ribbon Ceremony E Total Project Time C,D Pessimistic PERT Time Most Probable 17 12 4 Activit Optimistic 26 13 16 12 12 13 From the given table of activities and associated times, create a PERT/CPM diagram and complete the forward and backward passes Immediate Predecessor ActivityDescription Critical Path = Prepare Blue Print Receive Permits Prepare Ground Create Press ReleaseB Cement Work Steel Work Cut Ribbon Ceremony E Total Project Time C,D Pessimistic PERT Time Most Probable 17 12 4 Activit Optimistic 26 13 16 12 12 13