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Estimates of the optimistic, most probable, and pessimistic times $($in weeks$)$ for the activities are as follows.

$($a$)$ Find the critical path. $($Enter your answers as a comma$-$separated list.$)$

$($b$)$ What is the expected project completion time $($in weeks$)?$

$[$

weeks

$[$

k

$[$

$x$

$($e$)$ What should the construction company tell the owner? $($Enter your free$-$form answer using as many characters as necessary.$)$

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Mueller & Associates is a urban planning firm that is designing a new public park in an Omaha suburb. Coordination of the architect and subcontractors will require a major effort to meet the $47-$week completion date requested by the owner. The Mueller project manager prepared the following project network.