Find the activity duration (t), latest start (LS) and latest finish (LF) times for activity A.
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- Using the following project information Activity Optimistic TimeEstimate(weeks) Most Likely TimeEstimates (weeks) Pessimistic TimeEstimates (weeks) ImmediatePredecessor(s) A 2 3 5 none B 2.6 4 5 A C 5 7 8 A D 3 5 7 B, C E 4 7 14 B, C F 2 5 8 D G 4 5 6 E H 6 6 7 F I 4 7 10 G J 2 3 3 H, I The critical path is A-C-E-G-I-J. Activity A B C D E F G H I J Variance 0.25 0.16 0.25 0.44 2.78 1.00 0.11 0.03 1.00 0.03 (a) Calculate the probability that the project will be completed in 31 weeks. (Round your answer to 4 decimal places, e.g. 1.7945.) P(project ≤ 31) = enter a probability (b) Calculate the probability that the project will be completed in 35 weeks. (Round your answer to 4 decimal places, e.g. 1.7945.) P(project ≤ 35) = enter a probabilityTo design a new app, a project manager has gathered the time information foreach activity as shown in the following table:Activity Predecessors Optimistic Most Likely PessimisticA / 1 4 7B / 2 6 10C B 3 3 9D A 6 13 14E A, C 4 6 14F B 6 8 16G D,E,F 2 5 8Identify the critical path. How much slack time is associated with each noncritical activity?Suppose you wanted to have 99% confidence in the project finishing on time. How manyweeks in total would your project team need to achieve this 99% likelihood?Follow up to previous question: 3) A company decides to plan a project, with activities, precedences and random duration statistics given in the following table: Activity Immediate Predecessors Duration Minimum (weeks) Duration Mode (weeks) Duration Maximum (weeks) A none 2 5 9 B A 1 6 8 C A 3 5 12 D B 2 4 12 E B, C 4 6 8 F B 6 7 8 G D, E 1 2 6 H F, G 4 6 16 Questions: 1) What method should be used? Compute the mean and variances for each activity and add them to the table above. 2)Draw the project network and label the arcs with the activity name. 3) Assuming that the critical path is AàBàP1àEàGàH, compute the probability that this path duration is between 28 weeks and 32 weeks. 4) Assuming that the critical path is AàBàP1àEàGàH, compute the number of weeks within which the project will be completed with probability 0.95.
- Draw a Project Network and determine the critical path of this project? Activity Description Predecessor Duration (Days) A Order review None 2 B Order Parts A 15 C Produce Parts A 10 D Design Parts A 13 E Design Software A 18 F Produce Hardware C,D 15 G Assemble B,F 10 H Test E,G 5 A) A>D>F>G>H B) A>B>G>H C) A>E>H D) A>C>F>G>H114. Duration Task Estimates A ABCDE F 2 5 1 2 3 12 Click here for the Excel Data File Req B1 b-1. Identify the critical path. b-2. Identify the earliest start and finish. Task b-3. Identify the slack for each task. c. Which of these activities should the project manager track most closely? OUM TI Complete this question by entering your answers in the tabs below. D days days day F E F E F C days days days B A Immediate Predecessors None Identify the slack for each task. Note: Leave no cells blank - be certain to enter "0" wherever required. None A B A B and D E and C C, E B, D Immediate Successors Req B2 Req B3 Req C Latest Completion Latest Start (LS) SlackThe 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…
- Please help with (b) and (c) as both answers given were incorrect! Please need correct answers. Blue Lagoon is a contractor that installs residential swimming pools, projects that consist of nine major activities. The activities, their immediate predecessors, and the activity time estimates (in days) are shown. Activity Immediate Predecessor Optimistic Most Probable Pessimistic A 3 5 6 B 2 4 6 C A, B 6 7 8 D A, B 8 10 11 E B 2 4 6 F C 1 2 3 G D 6 10 12 H D, F 7 9 11 I E, G, H 3 4 5 (a) What are the critical activities? (Enter your answers as a comma-separated list.) $$A, D, G, I (b) What is the expected time (in days) to complete the project? (Round your answer to two decimal places.) (c) Based only on the critical path, what is the estimated probability that the project can be completed in 28 or fewer days? (Round your answer to four decimal places.)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 a) Develop a project network for this problem. b) What is the critical path and project completion time? c) What is the probability that the job will finish in 33 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 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?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 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:…