The full instructions are attached. 3.12 The activities needed to build a prototype laser scanning machine at Dave Fletcher Corp. are listed in the following table. Construct an AON network for these activities.
3.15 Dave Fletcher (see Problem 3.12) was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also be determined. Here are the activity times:
3.17 Ross Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels. Draw the AON network and answer the questions that follow.
a. What is the expected (estimated) time for activity C? b. What is the variance for activity C? c. Based on the calculation of estimated times, what is the critical path? d. What is the estimated time of the critical path? e. What is the activity variance along the critical path? f. What is the probability of completion of the project before week 36? [PX]
3.23 Using PERT, Adam Munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4.
1. What is the probability that the project will be completed in 17 months? 2. What is the probability that the project will be completed in 20 months? 3. What is the probability that the project will be completed in 23 months? 4. What is the probability that the project will be completed in 25 months? 5. What is the due date that yields a 95% chance of completion? [PX]
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