A Gentleman Farmer Maniacally Works on Academic Projects to Raise

question 80

Multiple Choice

A gentleman farmer maniacally works on academic projects to raise funds for his true passion,farming.He has identified seven tasks and developed three time estimates (all in days) of the next big project on the farm,replacing the fence at the comedy pasture.Tasks,precedence requirements,and time estimates are shown in the table.What is the standard deviation of the project's critical path? $$\begin{array} { | l | l | l | l | l | } \hline \text { Activity } & \begin{array} { l } \text { Optimistic }\end{array} & \begin{array} { l } \text { Most Likely }\end{array} & \begin{array} { l } \text { Pessimistic }\end{array} & \\\hline \text { time } & \text { time } & \text { time } & \text { Predecessor } \\\hline \text { Sorner Posts } & 4 & 5 & 6 & - \\\hline \text { Dig Holes } & 10 & 12 & 14 & \text { Corner Posts } \\\hline \text { Plant Posts } & 11 & 14 & 17 & \text { String Line } \\\hline \text { Weld Top Bar } & 8 & 11 & 14 & \text { String Line } \\\hline & & & & \text { Dig Holes, Plant } \\\hline \text { Paint } & 9 & 11 & 13 & \text { Posts } \\\hline \text { Tack Wire } & 9 & 12 & 16 & \text { Weld Top Bar } \\\hline\end{array}$$

• A) 1.33 days
• B) 1.56 days
• C) 1.25 days
• D) 1.75 days

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