Using PERT, we have determined the mean completion time for each activity ($\mu$_j) and the standard deviation for each activity completion time ($\sigma$_j).How do we use these data to determine the overall project completion time?

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The Answer of Using PERT, we have determined the mean completion time for each activity ($\mu$_j) and the standard deviation for each activity completion time ($\sigma$_j).How do we use these data to determine the overall project completion time?

Using PERT, We Have Determined the Mean Completion Time for Each