a. Determine the expected time (t,) for each activity. 5. Identify the critical path(s) c. What is the shortest time to complete the entire project?
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number 2 PERT, pls answer a-c.
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- 8. Dave Fletcher 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: Activity Time (weeks) Immediate Predecessor(s) Activity Time (weeks) Immediate Predecessor(s) A 7 − E 4 B B 6 − F 5 B C 4 A G 11 C, E D 2 A H 8 D , F Part 2 Dave's earliest start (ES) and earliest finish (EF) are: Activity ES EF A ___ 7 Activity ES EF B ____ Activity ES EF C _____ Activity ES EF D ___ Activity ES EF E ___ Activity ES EF F __ Activity ES EF G ____…A plumber has decided to use the techniques of project management in order to plan a job. He knew all the different activities of the job, their precedence and their average durations. They are shown on the table below. Activity Duration (days) Preceding activities A 3 None B 3 None C 4 A D 8 A E 2 B and C Required: 1. Draw a network diagram representing the sequence of activities and the dependence between them. 2. Determine how long it will take to complete the job by conducting the forward pass 3. By conducting the backward pass, identify the critical path and the non-critical path(s). Note: The work for this task should be produced using Word drawing facilities. The forward and backward passes should be clearly shown on the diagram. The calculations should be shown next to the network diagram.The Scott Corey accounting firm is installing a new computer system. Several things must be done to make sure the system works properly before all the accounts are put into the new system. The following table provides information about this project. How long will it take to install the system? What is the critical path? Activity Immediate Predecessor(s) Time (weeks) A 3 B 4 C A 6 D B 3 E A 5 F C 2 G D,E 5 H F,G 5 The managing partner of the Scott Corey accounting firm has decided that the system must be up and running in 16 weeks. Consequently, information about crashing the project was put together and is shown in the following table: Activity Immediate Predecessor(s) Normal Time (weeks) Crash Time (weeks) Normal Cost ($) Crash Cost ($) A 3 2 8,000 9,300 B 4 3 9,000 10,000 C A 6 4 12,000 15,000 D B 3 1 15,000 15,500 E A 5 3 5,000…
- 1. For the following Activity table draw the CPM diagram Using Activity On Node. Show the ES, LS, EF, LF and Slack for each activity on the diagram. Indicate the Critical path. Activity Time (Days) Predecessor A 4 ------------ B 7 A C 8 A D 2…For the next project: | | TIME ESTIMATE (WEEKS) TASK DESCRIPTION a m b A foundations 2 3 4 B framework 4 7.5 8 C roofs 3 5.5 11 D plumbing 2.5 4 5.5 E electrical wiring 2 3 4 F doors and windows 3 5 7 G interior finish 3 3.5 7 H exterior finish 2 5 8 I inspection 1 1 1 a. I made the network diagram. b. Calculate the parameters corresponding to expected time, variance, nearest and farthest start times and farthest c. What is the probability of meeting a specific project completion date? For example, what is the probability of building the house in 32 weeks? Topic: stochastic processesDave Fletcher 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: Activity Time (weeks) Immediate Predecessor(s) Activity Time (weeks) Immediate Predecessor(s) A 7 − E 4 B B 6 − F 5 B C 4 A G 10 C, E D 2 A H 8 D , F Part 2 Dave's earliest start (ES) and earliest finish (EF) are: Part 3 Part 4 Part 5 Part 6 Part 7 Part 8 Part 9 Part 10 Dave's latest start (LS) and latest finish (LF) are:…
- 3.1 Draw an Activity-On-Arrow (AOA) network diagram representing the project. Put the nodenumbers in circles and draw arrows from node to node, labelling each arrow with theactivity letter and estimated duration. 3.2 Identify all the paths on the network diagram and note how long they are. 3.3 What is the critical path for this project and how long is it? 3.4 What is the shortest possible time needed to complete the project?Dave Fletcher 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: Activity Time (weeks) Immediate Predecessor(s) Activity Time (weeks) Immediate Predecessor(s) A 7 − E 5 B B 8 − F 6 B C 4 A G 11 C, E D 3 A H 7 D , F Part 2 Dave's earliest start (ES) and earliest finish (EF) are: Part 3 Part 4 Part 5 Part 6 Part 7 Part 8 Part 9 Part 10 Dave's latest start (LS) and latest finish (LF) are:…11-23 Tom Schriber, the director of personnel of Manage-ment Resources, Inc., is in the process of designing a program that its customers can use in the job-findingprocess. Some of the activities include preparingresumés, writing letters, making appointments to seeprospective employers, and researching companiesand industries. The information on these activities isshown in the following table: (d) Determine the critical path(s) and project com-pletion time. (e) Determine the probability that the project willbe finished in 70 days or less.(f) Determine the probability that the project willbe finished in 80 days or less.
- An electronic contractor is examining the amount of time his crews take to complete wiring jobs. Some crews take longer than others. For an upcoming job, a list of activities and their optimistic, most likely, and pessimistic completion times are given in the following table. Days Activity a m b Immediate Predecessors A 2 5 8 - B 1 3 5 - C 1 2 3 - D 5 6 7 C E 1 3 5 B, D F 5 9 13 A, E G 1 2 3 A, E H 2 5 8 F I 9 10 11 G J 13 15 20 G K 4 7 10 H, I a) Develop a project network for this problem. b) Determine the expected duration and variance for each activity. c) Determine the EST, EFT, LST, LFT, and slack for each activity. d) What is the critical path and project completion time? e) What is the probability that the job will finish in 33 days or less? f) Submit your excel fileAn electronic contractor is examining the amount of time his crews take to complete wiring jobs. Some crews take longer than others. For an upcoming job, a list of activities and their optimistic, most likely, and pessimistic completion times are given in the following table. Days Activity a m b Immediate Predecessors A 2 5 8 - B 1 3 5 - C 1 2 3 - D 5 6 7 C E 1 3 5 B, D F 5 9 13 A, E G 1 2 3 A, E H 2 5 8 F I 9 10 11 G J 13 15 20 G K 4 7 10 H, I Use excel to answer the following; a) Develop a project network for this problem. b) Determine the expected duration and variance for each activity. c) Determine the EST, EFT, LST, LFT, and slack for each activity.An electronic contractor is examining the amount of time his crews take to complete wiring jobs. Some crews take longer than others. For an upcoming job, a list of activities and their optimistic, most likely, and pessimistic completion times are given in the following table. Days Activity a m b Immediate Predecessors A 2 5 8 - B 1 3 5 - C 1 2 3 - D 5 6 7 C E 1 3 5 B, D F 5 9 13 A, E G 1 2 3 A, E H 2 5 8 F I 9 10 11 G J 13 15 20 G K 4 7 10 H, I a) Develop a project network for this problem. b) Determine the expected duration and variance for each activity. c) Determine the EST, EFT, LST, LFT, and slack for each activity. d) What is the critical path and project completion time? e) What is the probability that the job will finish in 33 days or less?