Consider the following work breakdown structure: Activity Start A B C UDEF Precedes A,B C,D D E TIM F F End Time Estimates (days) Most Likely Pessimistic Optimistic 44 45 42 31 27 58 50 60 45 40 36 70 What is the estimated expected (mean) time for activity E? 56 75 48 49 39 82
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- 11. Draw an arrow diagram that depicts the logic for finishing work on a house project, as described below: Activity ABCDEFGHLIKIN M Activity Description Mobilize Paint walls and ceiling Vinyl floor in kitchen and laundry room Ceramic floor in bathroom Wallpaper in bathroom and kitchen Set kitchen appliances Install wall-hung mirror Hang prefab kitchen cabinets Set bath fixtures Install base trim Lay carpet in living room, etc. Touch up paint Demobilize Dependent on Activity | ARRACH B AUT C, E H, I F, J G, K LWeighted-Average Method Arsenio Company manufactures a single product that goes throughtwo processes, mixing and cooking. The following data pertain to the mixing department for August:[LO 6-2, 6-5][LO 6-2, 6-3, 6-4]Work-in-Process Inventory, August 1Conversion: 80% complete 34,000 unitsWork-in-Process Inventory, August 31Conversion: 50% complete 30,000 unitsUnits started 66,000Units completed and transferred out ?CostsWork-in-Process Inventory, August 1Material X $ 64,800Material Y 88,100Conversion 119,880Costs added during AugustMaterial X 152,700Material Y 135,900Conversion 305,120Material X is added at the beginning of work in the mixing department. Material Y is also added in themixing department, but not until units are 60% complete with regard to conversion. Conversion costs areincurred uniformly during the process. The company uses the weighted-average cost method.Required1. Calculate the equivalent units of material X, material Y, and conversion for the mixing department.2.…c: What is The Critical Path and Time (day)? explain your answe
- Eng. Samer, the director of software development department at SUC, in the process of designing a program that the students can use easily in the job-finding process. In the table below you can find the activities required to program the mentioned software: ID description Predecessor optimistic time most likely time pessemestic time crash time normal cost crash cost A System analysis None 2 4 6 3 2000 2400 B system design None 1 2 3 1 2200 2800 C subsystem design None 1 2 9 3 500 500 D programming A 3 7 17 4 2300 2600 E documentation C 4 6 8 3 900 1200 F subsystem test D,B,E 1 2 9 2 3000 4200 G integration test F,E 2 4 6 2 1400 2000 Draw project Network plan (diagram), and identifying all possible paths.1. Describe the Failure Mode Effect Analysis (FMEA) and how it can improve your risk management strategy. 2. Describe how a Risk Breakdown Structure (RBS) can complement the Work Breakdown structure (WBS)?11-23 Tom Schriber, the director of personnel of Management Resources, Inc., is in the process of designing a program that its customers can use in the job-finding process. Some of the activities include preparing resumés, writing letters, making appointments to see prospective employers, and researching companies and industries. The information on these activities is shown in the following table: ACTIVITY DAYS IMMEDIATE PREDECESSORS a m b A 8 10 12 — B 6 7 9 — C 3 3 4 — D 10 20 30 A E 6 7 8 C F 9 10 11 B, D, E G 6 7 10 B, D, E H 14 15 16 F I 10 11 13 F J 6 7 8 G, H K 4 7 8 I, J L 1 2 4 G, H a. Construct a network for this problem. b. Determine the expected time and variance for each activity. c. Determine ES, EF, LS, LF, and slack time for each activity. d. Determine the critical path(s) and project completion time. e. Determine the probability that the project will be finished in 70 days or less. f. Determine the probability that the project will…
- The following are some observations of worker timings for a number of elements that make up a task. The total allowance factor is 15% task OBSERV.1 OBS.2 OBS.3 OBS.4 OBS.5 OBS.6 PERF. RATING A 8 9 10 13 14 12 120% B 3 4 5 4 3 6 85% C 5 6 7 4 5 7 105% D 3 2 1 3 2 2 95% Calculate the average times for each element A, B, C etc. Calculate the normal (basic) time for each job element. Ie. Normal time = (Average observed time) x (Rating) Find the total normal time for the whole task (A+B+C +….) Compute the standard time for the Job. 2. Name 5 advantages of work sampling over time study. 3.What is the difference between design capacity and effective capacity in a production environment?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?Case: "What am I Doing Wrong?" Susan Johnson, one of the supervisors in the business office, seemed always to be extra busy but never “caught up”. Frustrated with her never diminishing workload and tired of staying in hours of late nearly every day, she spent two evenings reading up on planning and priorities and decided to try to plan the next day's activities at the finish of each work day. She came to the office the following Monday with her day planned out to the last minute. She had created a list of everything she needed to get done that day, including the following: Complete an overdue report Write two performance appraisals due that day Develop the agenda for the following day’s staff meeting, and Prepare for a new employee orientation. It would be a tight fit for an 8-hour day, but she believes she could do it if she remained focused. Susan got off to a good start by finishing the report earlier than she thought she would and turned her attention to the performance…
- You and several friends are about to prepare a lasagna dinner. The tasks to be performed, their immediate predecessors, and their estimated durations are as follows: Task Task Description Predecessors Time estimate (in minutes) te σ2 to tm tp A Slice the mozzarella -- 4 5 6 B Mix eggs and ricotta cheese -- 5 6 8 C Cut up onions and mushrooms _ 6 7 9 D Cook the tomato sauce C 20 23 24 E Boil large quantity of water _ 15 15 15 F Cook and drain the noodles E 12 13 16 G Assemble all the ingredients B,D,F 10 13 14 H Preheat the oven _ 14 15 15 I Bake the lasagna H, I 30 32 35 Draw the network diagram for this project. Clearly label the earliest start, earliest finish, latest start and latest finish for each activity. Specify the critical path and the critical activities…You and several friends are about to prepare a lasagna dinner. The tasks to be performed, their immediate predecessors, and their estimated durations are as follows: Task Task Description Predecessors Time estimate (in minutes) te σ2 to tm tp A Slice the mozzarella -- 4 5 6 B Mix eggs and ricotta cheese -- 5 6 8 C Cut up onions and mushrooms _ 6 7 9 D Cook the tomato sauce C 20 23 24 E Boil large quantity of water _ 15 15 15 F Cook and drain the noodles E 12 13 16 G Assemble all the ingredients A,B,D,F 10 13 14 H Preheat the oven _ 14 15 15 I Bake the lasagna H, G 30 32 35 When calculating te, round the value to nearest integer. Draw the network diagram for this project. Clearly label the earliest start, earliest finish, latest start and latest finish for each…Consider the following work breakdown structure: Start Finish Duration (days) Activity More Mode Optimistic Post Likely Pessimistic A 1 2 41 50 59 B 1 3 54 60 66 C 2 4 58 70 82 D 3 4 32 41 44 What is the estimated expected (mean) time for activity D? Multiple Choice 42 days 32 days 41 days 40 days