In the following table the activities with their precedence sequence and expected timeâ€‹ (days) are listed for a project on which Carlâ€‹ Betterton's construction company isâ€‹ working: Activity Immediateâ€< Predecessor(s) Timeâ€< (days) 3 4 The correct AON diagram for the project is: ABCDEFGH â™ A A B B C D â€‹E, F 6 4 4 6 8

In the following table the activities with their precedence sequence and expected timeâ€‹ (days) are listed for a project on which Carlâ€‹ Betterton's construction company isâ€‹ working: Activity Immediateâ€< Predecessor(s) Timeâ€< (days) 3 4 The correct AON diagram for the project is: ABCDEFGH â™ A A B B C D â€‹E, F 6 4 4 6 8

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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1.The chief engineer of firm XYZ is responsible for supervising the construction work of a road. He has identified the activities and their durations for each stage of operation. Activity Duration (days) Preceding activities A 5 - B 10 - C 1 - D 8 B E 10 B F 9 B G 3 A,D H 7 A,D I 4 F J 3 F K 5 C,J L 8 H,E,I,K M 4 CJ Draw a network diagram (AOA) for this road construction project. Which are the critical activities? How long the project will take?
Normal Time Problem 1 You are the manager of a project to improve a billing process at your firm. The following table contains the data you will need to conduct crashing of the project duration. Indirect costs are $1,600 per week, and penalty costs are $1,200 per week after Week 12. Activity Immediate Predecessor(s) Crash Time (weeks) Normal (Direct) Cost Crash Cost (weeks) ($) ($) A 4 1 5,000 8,000 B 5 2 8,000 11,000 C A 1 1 4,000 4,000 Ꭰ B 6 3 6,000 12,000 E B, C 7 6 4,000 7,000 F Ꭰ 7 6 4,000 7,000 What is the optimum choice for project duration?
2:30 PM ě 0.3KB/s 1ll 54 4G+ 00:15:12 Remaining Multiple Choice The primary difference between PERT and CPM is that CPM uses probabilities on the activity times and PERT does not. O. PERT considers activity costs and CPM does not. PERT can assign probabilities to activity times and CPM does not. CPM considers activity costs and PERT does not. 5 of 20 II
Environment Recycling, Inc. must clean up a large automobile tire dump under a state environmental cleanup contract. Suppose that some of the activities in the Environment Recycling, Inc. project can be crashed.The table below shows the crash times and costs associated with performing the activities at their original (normal) times and also for the crash times (all times are in weeks). Normal Crash Normal Crash Activity Predecessor(s) Time Time Cost Cost A — 6 5 $490 $640 B A 9 7 1,800 2,400 C A 8 7 860 1,060 D — 7 6 620 920 E B, C, D 9 7 1,900 2,300 F D 4 2 820 1,320 G D 4 3 620 870 H E 5 4 500 710 I F, G, H 7 5 950 1,550 Choose the correct network for the project. The correct network is C . Identify the critical path. The critical path is A-B-E-H-I. What is the total project completion time? Round your answer to the nearest whole number. ___ weeks What is the lowest cost solution if…
Consider a construction project with the following data on precedence relationships, durations, and costs: Activity Immediate predeccessor (s) Normal Time (days) Normal Cost ($) Crash Time (Days) Crash Cost ($) A - 6 120 4 170 B - 4 120 2 220 C A 3 195 2 270 D A 4 320 2 520 E B, C 7 700 4 1075 F D, E 5 650 2 1100 G E 10 1600 6 2300 F and G are the terminal activities of the project. (a) Find the critical path. (b) Find the project completion time and the corresponding cost. (c) Suppose it is required to complete the project in 22 days. Find which activities to crash and by how much, to yield the minimum project cost. Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.
Create an AOA diagram based on the information Task A, duration 6, dependent on noneTask B, duration 5, dependent on noneTask C, duration 3, dependent on noneTask D, duration 12, dependent on Task B and Task C Task E, duration 2, dependent on Task ATask F, duration 5, dependent on Task BTask G, duration 1, dependent on Task BTask H, duration 9, dependent on Task E and Task FTask I, duration 7, dependent on Task GTask J, duration 7, dependent on Task HTask K, duration 3, dependent on Task ITask L, duration 5, dependent on Task D
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Ed is planning to build a treehouse as a present for his son's upcoming 10th birthday. The details for each task are as follows: DE F G AD C,E F 12 Task A B Preceding Task Duration (day) | 12 A B 10 12 5 Cost (RM) 50 140 120 60 70 80 60 (a) Obtain the following: • The number of days it will take for Ed to finish building the treehouse. • Which tasks are cannot be delayed at all without delaying the whole project. • The total cost of building the treehouse. (b) Due to illness, Ed has to begin building the treehouse later than planned. He reckons that he must reduce the build duration by 3 days to complete the treehouse by his son's birthday. He has determined the crash cost and crash time for each task as follows: Task А В С DE F G Crash Time (day) | 12 8 9 8 10 5 6 Crash Cost (RM) | 50 170 180 70 95 80 60 Obtain the following: • All tasks that are crashed and by how much. • The new total cost for building the treehouse.
Time Immediate Time Activity (weeks) Predecessor(s) Activity (weeks) 5 6 9 7 ABCD 5622 A A Dave's earliest start (ES) and earliest finish (EF) are: Activity A B ооши G H Dave's latest start (LS) and latest finish (LF) are: Activity H ES 0 0 5 5 6 6 11 12 LS 13 EFGH EF 5 6 7 7 11 12 20 19 LF Immediate Predecessor(s) B B C, E D, F
A B с D E FL ד G H J K L M N P R S T U V 1 On Week 3 Forecast 4 2 a) Smell Fresh Customer Orders hand 1 2 20 20 5 3 5 PAB 20 50 30 3222 4 5 6 7 8 Problem 6: Georgia Clay and Gravel was updating the MPS record for one of its products, Smell Fresh Cat Litter. Partially-completed MPS time-phased record is given below. 20 30 30 30 30 30 Week 10 30 50 20 40 10 Item: Smell Fresh On hand 1 6 Available to Promise 7 MPS 50 50 50 50 Forecast 20 8 MPS lot size = 50 9 20 10 On Week hand 2 3 4 5 6 7 8 9 20 53 43 78 30 30 30 30 30 3220 2233 -250 30 10 30 50 6 8 45 12 13 14 PAB 15 11 b) Smell Fresh Forecast Customer Orders Available to Promise 16 MPS 17 MPS lot size=50 18 19 20 21 23 24 222 Orders Projected available balance Available-to-promise MPS MPS Lot Size = 50. 50 20 40 10 50 50 50 a) Complete the MPS time-phased record (the first table on the left). The following events occurred during week 1: • Actual demand during week 1 was 25 units. • Marketing forecasted that 40 units would be needed for…
Define each of these terms, and indicate how each is determined.a. Expected activity time
Activity A B CDEFG 3. You have been appointed as the project leader of a project to be undertaken by your company. You have identified the following tasks and made the time estimates for each task as listed in the table below: с Preceding "from" activity A A A B,C C,D,E F Succeeding "to" activity B,C,D E E F F G Estimated duration work days) 3 5 3 10 8 14 7 a) Use the above table to construct a project network diagram. b) Determine the critical path for the project and its duration.