Consider the following PERT/CPM network with estimated times in weeks.The project is scheduled to begin on May 1.
The three-time estimate approach was used to calculate the expected times and the following table gives the variance for each activity:

$$\begin{array} { c c | c c }
\text { Activity } & \text { Variance } & \text { Activity } & \text { Variance } \
\hline \text { A } & 1.1 & \mathrm { E } & 0.3 \
\text { B } & 0.5 & \mathrm {~F} & 0.6 \
\text { C } & 1.2 & \mathrm { G } & 0.6 \
\text { D } & 0.8 & \mathrm { H } & 1.0
\end{array}$$
a.Give the expected project completion date and the critical path.
b.By what date are you 99% sure the project will be completed?

Question

Consider the following PERT/CPM network with estimated times in weeks.The project is scheduled to begin on May 1.
The three-time estimate approach was used to calculate the expected times and the following table gives the variance for each activity:
  ​
 $$\begin{array} { c c | c c } 
\text { Activity } & \text { Variance } & \text { Activity } & \text { Variance } \
\hline \text { A } & 1.1 & \mathrm { E } & 0.3 \
\text { B } & 0.5 & \mathrm {~F} & 0.6 \
\text { C } & 1.2 & \mathrm { G } & 0.6 \
\text { D } & 0.8 & \mathrm { H } & 1.0
\end{array}$$ 
a.Give the expected project completion date and the critical path.
b.By what date are you 99% sure the project will be completed?

Quizplus · Accepted Answer

The Answer of Consider the following PERT/CPM network with estimated times in weeks.The project is scheduled to begin on May 1.
The three-time estimate approach was used to calculate the expected times and the following table gives the variance for each activity:
  ​
 $$\begin{array} { c c | c c } 
\text { Activity } & \text { Variance } & \text { Activity } & \text { Variance } \
\hline \text { A } & 1.1 & \mathrm { E } & 0.3 \
\text { B } & 0.5 & \mathrm {~F} & 0.6 \
\text { C } & 1.2 & \mathrm { G } & 0.6 \
\text { D } & 0.8 & \mathrm { H } & 1.0
\end{array}$$ 
a.Give the expected project completion date and the critical path.
b.By what date are you 99% sure the project will be completed?

Consider the Following PERT/CPM Network with Estimated Times in Weeks