1) What is the probability that the project can be completed in 23 days or less?

0.3557 0.6736 0.8568 0.9686

2)Suppose it is now the end of the seventh day and that activities A and B have been completed. Time estimates for the completion of activity D are 5,6, and 7. Activities C and H are ready to begin. What is the probability of finishing the project by day 23?

0.6433 0.3129 0.0582 0.0186

3)Suppose it is now the end of the seventh day and that activities A and B have been completed. Time estimates for the completion of activity D are 5,6, and 7. Activities C and H are ready to begin. What is the probability of finishing the project by day 23?

The Partners have decided that shortening the project by two days would be beneficial, as long as it doesn't cost more than about $20,000. They have estimated the daily crashing costs for each activity on thousands, as shown in the part D table. Which activity should be crashed first?

TIME IN DAYS \begin{tabular}{ccccc} Activity & ImmediatePredecessor & Optimistic & Most Likely & Pessimistic \\ \hline A & - & 5 & 6 & 7 \\ B & - & 8 & 8 & 11 \\ C & A & 6 & 8 & 11 \\ D & - & 9 & 12 & 15 \\ E & C & 5 & 6 & 9 \\ F & D & 5 & 6 & 7 \\ G & F & 2 & 3 & 7 \\ H & B & 4 & 4 & 5 \\ I & H & 5 & 7 & 8 \\ End & E, G, I & & & \end{tabular}