PERT Project Example

Consider the following PERT precedence table and corresponding AON network diagram, where all durations are in days. Note that the activity durations used in the diagram are the ET estimates calculated in the table.

Suppose now the Project Manager is interested in determining the duration corresponding to $95\%$ probability of completion. What is this duration in days? Please choose the closest answer.

$54\mathrm{.}25$

$52\mathrm{.}45$

$56\mathrm{.}35$

$57\mathrm{.}60$

$51\mathrm{.}25$