(1 point) Jay Jones, a project manager at FastCrete Inc, recently learned about the classic PERT method for planning under task time uncertainty. FastCrete has previously used critical chain project management ( CCPM ) exclusively. Wanting to better understand how these two methods compare, Jay has asked you to do some comparative analysis.

The table below provides Jay's planning estimates for a new project including tasks, precedence relations, durations for the PERT approximation, and task duration point estimates for use with CCPM. FastCrete has standardized CCPM estimating, reducing duration estimates by 42% and calculating a project buffer as 35% of the makespan reduction. Jay would like the PERT project buffer to be a 98% confidence buffer.

Because he has little experience with project management in general, he would like you to calculate the metrics shown below.

Note: Round all answers to 2 decimal places. If asked to enter a path, enter the task id's separated with hyphens (e.g. start-A-C-end).

\begin{tabular}{c|c|c|c|c|c} Task & Predecessors & Optimistic & Most Likely & Pessimistic & CCPM Point Estimate \\ \hline start & & 0 & 0 & 0 & 0 \\ A & start & 28 & 30.8 & 33.5 & 32.29 \\ B & A & 32.1 & 35.6 & 46 & 40.56 \\ C & B & 22.7 & 23.8 & 28.3 & 25.9 \\ D & start & 13.4 & 24.6 & 66.4 & 44.23 \\ E & B & 37.8 & 48.2 & 51.9 & 50.95 \\ F & B & 20.3 & 53.4 & 65.9 & 62.47 \\ G & D,F & 11.1 & 69 & 77.4 & 78.93 \\ H & E,F & 27.5 & 48.3 & 69.2 & 59.75 \\ I & H & 38.5 & 41 & 45.9 & 43.43 \\ J & C & 26.9 & 71.8 & 77.4 & 79.09 \\ K & G,I,J & 15.5 & 34.5 & 39.9 & 38.92 \\ L & F & 31.2 & 32.5 & 36 & 34.18 \\ M & I,J & 36.5 & 37.3 & 40.4 & 38.75 \\ end & K,L,M & 0 & 0 & 0 & 0 \end{tabular} PERT Expected Makespan: PERT Critical Path Std Dev: PERT Promise Date: PERT Project Buffer Size: CCPM Project Buffer Size: CCPM Promise Date