+ 1. The following project is defined as follows: Use PERT/CPM to answer the following questions....

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+ 1. The following project is defined as follows: Use PERT/CPM to answer the following questions. You need to work this out manually without any software using AOA or AON network method. Activity ABCDEFGHLIEL J ACTIVITY AB AC AD BC Duration (weeks) Immediate Predecessors 10 BE CF DF 7 4 20 7 10 7 3882 15 11 EF FG 7 2 a. Construct the network for this problem b. Determine the early start, late start, early finish, late finish for each activity c. Determine the estimated project completion time and critical path d. Determine the slack for each activity e. What is the effect to the overall project if activity C takes 21 weeks and activity E takes 10 weeks to complete 2. On June 12, 2013, the Delta Corporation was awarded a $160,000 contract for testing a product. The contract consisted of $143,000 for labor and materials, the remaining $17,000 was profit. The contract had a scheduled start date of July 3. The network logic, as defined by the project manager and approved by the customer is the following: NETWORK LOGIC/ TIME (Weeks) 7 10 AURRE 8 4 А 2 3 с 2 1 B.D.E. B.DE F F G.H LI G.H On August 27, 2013, the executive steering committee received the following report indicating the status of the project as of this time (end of week 8) ACTIVITY % COMPLETE ACTUAL COST TIME REMAINING (Weeks) AB AC AD BC BE a. What is the expected completion time of this project? b. What is the critical path? START ACTIVITY c. Use Earned Value to determine the status of the project as of August 27th, by determining Cost Variance, Schedule Variance, CPI, SPI and Critical Ratio ABCDE 100 60 d. Is the project ahead of schedule or behind schedule and over budget or under budget? e. What recommendations would you make for this project? 87.5 50 50 3. Given the following PERT network for modeling a new home construction by the Bonanza Development companx (activity times are given in weeks): 133 st 3 B 3 E $23,500 $19,200 DURATION ACTIVITY DURATION 6 8 CHLIEL $37,500 $8,000 $5,500 G Н F K H 10 5 0 4 1 2 1 3 1 5 3 K FINISH a) What is the critical path and expected project completion time? b) Activity J is being performed by a subcontractor, Reliable Plumbers, who is going to be 5 weeks delayed. It will cost Bonanza $2000 per week if the project is not completed on time (within the critical path length). Reliable is charging $3000 for the plumbing activity. Bonanza has three options: > Keep Reliable Plumbers 4. Consider the following project (times are in weeks): A ACTIVITY Cancel the contract with Reliable Plumbers and hire another contractor, Local Plumbers Inc. Local Plumbers will take two weeks to complete activity J and will charge $7000. Bonanza can train its own employees who are currently performing activity E to do the work. This involves a two week training period as soon as activity E is done. It is expected it will take them three weeks to perform activity J. The cost of the training is $800 per week and the cost of them doing activity J is $1000 per week. Which alternative do you recommend? Explain? ABCDEFG NORMAL CRASH TIME TIME 12 7 844244 B 12 53193 E NORMAL COST $3,000 $2,000 $4,000 $500 $5,000 $500 $5,000 F CRASH COST $5,000 $3,500 $7,000 $1,100 $8,000 $1,100 $8,000 G & What is the critical path & project completion time? b. What is the minimal cost to crash the project to 24 weeks? c. What is the minimal time and cost that the project can be crashed? 5. Refer to the earned value chart below for a specific project and answer the following questions: DOLLARS $35,000 $30,000 $25,000 $20,000 $15,000 $10,000 $5,000 $0. EARNED VALUE 6 7 TIME LINE (weeks) 8 10 12 a. Describe what occurred with schedule and cost in weeks 1 through 5 b. Between weeks 5 and 6, was the project on schedule and within cost? Explain? c. Explain what occurred between weeks 6 through 8 with regards to schedule and costs d. Describe the current status of the project (week 10) with regards to cost and schedule -BCWS BCWP ACWP a. The probability of completing the project within 20 days b. The probability of completing the project between 17 and 21 days c. The probability of completing the project within 16 days d. The number of days to complete the project within a probability of 95% Activity A M B A B с D Activity А ABCDEFGH-KLE E F G J M a. Average time and standard deviation to complete the project b. The probability that each activity is on the critical path c. The probability of completing the project within 50 weeks 1 2 4 ABBD00 8 2 4 1 7. Consider the following project below. Assume that each time has a triangular distribution with the minimum, most likely and maximum values indicated. Use simulation to determine: А Immediate Minimum Predecessor Value 2 C,E,F,G H H I J K,L Time Estimates (weeks) Most Likely Value W74A W ON W 3 8 6 3 3 3 1 3 3 10 8 6 2 43200420 00 00 61415 8 3 5 9 5 5 2 5 5 4 2 4 Maximum Value 5 7 10 8 10 7 9 3 4 6 64 10 8 6 3 6 Immediate Predecessors A B C.D B E + 1. The following project is defined as follows: Use PERT/CPM to answer the following questions. You need to work this out manually without any software using AOA or AON network method. Activity ABCDEFGHLIEL J ACTIVITY AB AC AD BC Duration (weeks) Immediate Predecessors 10 BE CF DF 7 4 20 7 10 7 3882 15 11 EF FG 7 2 a. Construct the network for this problem b. Determine the early start, late start, early finish, late finish for each activity c. Determine the estimated project completion time and critical path d. Determine the slack for each activity e. What is the effect to the overall project if activity C takes 21 weeks and activity E takes 10 weeks to complete 2. On June 12, 2013, the Delta Corporation was awarded a $160,000 contract for testing a product. The contract consisted of $143,000 for labor and materials, the remaining $17,000 was profit. The contract had a scheduled start date of July 3. The network logic, as defined by the project manager and approved by the customer is the following: NETWORK LOGIC/ TIME (Weeks) 7 10 AURRE 8 4 А 2 3 с 2 1 B.D.E. B.DE F F G.H LI G.H On August 27, 2013, the executive steering committee received the following report indicating the status of the project as of this time (end of week 8) ACTIVITY % COMPLETE ACTUAL COST TIME REMAINING (Weeks) AB AC AD BC BE a. What is the expected completion time of this project? b. What is the critical path? START ACTIVITY c. Use Earned Value to determine the status of the project as of August 27th, by determining Cost Variance, Schedule Variance, CPI, SPI and Critical Ratio ABCDE 100 60 d. Is the project ahead of schedule or behind schedule and over budget or under budget? e. What recommendations would you make for this project? 87.5 50 50 3. Given the following PERT network for modeling a new home construction by the Bonanza Development companx (activity times are given in weeks): 133 st 3 B 3 E $23,500 $19,200 DURATION ACTIVITY DURATION 6 8 CHLIEL $37,500 $8,000 $5,500 G Н F K H 10 5 0 4 1 2 1 3 1 5 3 K FINISH a) What is the critical path and expected project completion time? b) Activity J is being performed by a subcontractor, Reliable Plumbers, who is going to be 5 weeks delayed. It will cost Bonanza $2000 per week if the project is not completed on time (within the critical path length). Reliable is charging $3000 for the plumbing activity. Bonanza has three options: > Keep Reliable Plumbers 4. Consider the following project (times are in weeks): A ACTIVITY Cancel the contract with Reliable Plumbers and hire another contractor, Local Plumbers Inc. Local Plumbers will take two weeks to complete activity J and will charge $7000. Bonanza can train its own employees who are currently performing activity E to do the work. This involves a two week training period as soon as activity E is done. It is expected it will take them three weeks to perform activity J. The cost of the training is $800 per week and the cost of them doing activity J is $1000 per week. Which alternative do you recommend? Explain? ABCDEFG NORMAL CRASH TIME TIME 12 7 844244 B 12 53193 E NORMAL COST $3,000 $2,000 $4,000 $500 $5,000 $500 $5,000 F CRASH COST $5,000 $3,500 $7,000 $1,100 $8,000 $1,100 $8,000 G & What is the critical path & project completion time? b. What is the minimal cost to crash the project to 24 weeks? c. What is the minimal time and cost that the project can be crashed? 5. Refer to the earned value chart below for a specific project and answer the following questions: DOLLARS $35,000 $30,000 $25,000 $20,000 $15,000 $10,000 $5,000 $0. EARNED VALUE 6 7 TIME LINE (weeks) 8 10 12 a. Describe what occurred with schedule and cost in weeks 1 through 5 b. Between weeks 5 and 6, was the project on schedule and within cost? Explain? c. Explain what occurred between weeks 6 through 8 with regards to schedule and costs d. Describe the current status of the project (week 10) with regards to cost and schedule -BCWS BCWP ACWP a. The probability of completing the project within 20 days b. The probability of completing the project between 17 and 21 days c. The probability of completing the project within 16 days d. The number of days to complete the project within a probability of 95% Activity A M B A B с D Activity А ABCDEFGH-KLE E F G J M a. Average time and standard deviation to complete the project b. The probability that each activity is on the critical path c. The probability of completing the project within 50 weeks 1 2 4 ABBD00 8 2 4 1 7. Consider the following project below. Assume that each time has a triangular distribution with the minimum, most likely and maximum values indicated. Use simulation to determine: А Immediate Minimum Predecessor Value 2 C,E,F,G H H I J K,L Time Estimates (weeks) Most Likely Value W74A W ON W 3 8 6 3 3 3 1 3 3 10 8 6 2 43200420 00 00 61415 8 3 5 9 5 5 2 5 5 4 2 4 Maximum Value 5 7 10 8 10 7 9 3 4 6 64 10 8 6 3 6 Immediate Predecessors A B C.D B E

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Here are the stepbystep workings for the questions 1 Project network and PERT calculations a The network for the given activities is A F G H B F C E D ... View the full answer