Concept explainers
A.
Interpretation: All the paths in the network diagram are to be identified.
Concept Introduction: Program Evaluation and review technique is a planning and control tool, wherein the work flow of various activities of a project are graphically represented and analyzed. This technique is distinct in the way that it deals with uncertainty in the activity completion times.
B.
Interpretation: The critical path is to be identified by computing the expected completion times.
Concept Introduction: Program Evaluation and review technique is a planning and control tool, wherein the work flow of various activities of a project are graphically represented and analyzed. This technique is distinct in the way that it deals with uncertainty in the activity completion times.
C.
Interpretation: The probability that the project will be completed by 20 weeks, with the critical path based on expected completion times is to be computed.
Concept Introduction: Program Evaluation and review technique is a planning and control tool, wherein the work flow of various activities of a project are graphically represented and analyzed. This technique is distinct in the way that it deals with uncertainty in the activity completion times.
D.
Interpretation: The probability that the project will be completed by 20 weeks is to be computed, using the independence of paths A − C − E and B − F - G.
Concept Introduction: Program Evaluation and review technique is a planning and control tool, wherein the work flow of various activities of a project are graphically represented and analyzed. This technique is distinct in the way that it deals with uncertainty in the activity completion times. Path independence method is used to compute critical paths other than the one with the longest completion time.
E.
Interpretation: The probability that the project will be completed by 20 weeks is to be computed, using independence of paths.
Concept Introduction: Program Evaluation and review technique is a planning and control tool, wherein the work flow of various activities of a project are graphically represented and analyzed. This technique is distinct in the way that it deals with uncertainty in the activity completion times.
F.
Interpretation: The accuracy of the probability of completing the project within 20 weeks with the critical path and path independence method is to be commented
Concept Introduction: Program Evaluation and review technique is a planning and control tool, wherein the work flow of various activities of a project are graphically represented and analyzed. This technique is distinct in the way that it deals with uncertainty in the activity completion times.
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Production and Operations Analysis, Seventh Edition
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- In making a forward pass through a network, three activities are immediate predecessors for activity T and one following activity. What is the late start time for activity T? Group of answer choices: - the LS of the following activity plus the activity time of T - the smallest EF for the three activities that are immediate predecessors for activity T - the LF of the following activity minus the activity time of T - the LS of the following activity minus the activity time of T - the largest EF for the three activities that are immediate predecessors for activity Tarrow_forward(g) Using the IF function, write a formula in J38 to display "Yes" if the activity is critical and display "No" if the activity is not critical. Copy the formula to cells J39:J44.To calculate the entire project's variance, we simply add variance for activities on the critical path. Screenshot attached tahnks!!!arrow_forwardConsider the following PERT time estimates: a. Draw a network for this project and determine the critical path based on the most likely times by inspection.b. Assuming that the critical path is the one you identified in part (a), what is the probability that the project will be completed before 28weeks? Before 32 weeks?c. Assuming that the critical path is the one you identified in part (a), how many weeks are required to complete the project with probability .95?arrow_forward
- A group of developers is building a new shopping center. A consultant for the developers has developedthe following table of activities, durations and predecessors. Determine the earliest start times andfinish times, latest start and finish times, activity slack, critical path and duration for the project. Thereis a Bonus for finishing the project at 90% of the projected date. The bonus for early completion is$50,000. Which activities should be crashed, if the cost for 1 week reduction, for any activity, is $3500per week, and what is the total cost of crashing? And, Net Bonus, if any.arrow_forwardThe following estimates of activity times (in days) are available for a small project: Activity Optimistic Most Probable Pessimistic A 4 5.0 6 B 8 9.0 10 C 7 7.5 11 D 7 9.0 10 E 6 7.0 9 F 5 6.0 7 Compute the expected activity completion times and the variance for each activity. An analyst determined that the critical path consists of activities B-D-F. Compute the expected project completion time and the variance of this path.arrow_forward11-16 Jean Walker is making plans for spring break at the beaches in Florida. In applying techniques she learned in her quantitative methods class, she has identified the activities that are necessary to prepare for her trip. The following table lists the activities and the immediate predecessors. Draw the network for this project. 11-17 The following are the activity times for the project in Problem 11-16. Find the earliest, latest, and slack times for each activity. Then find the critical path. These problems go together and are deterministic times.arrow_forward
- I need a detailed explanation and assistance to solve the this problem: A company decides to plan a project, with activities, precedences and deterministic durations given in the following table: Activity i Duration (days) Immediate Predecessors A 32 none B 21 none C 30 none D 45 A E 26 A, B F 28 C G 20 E, F a) What method should be used? Using only one pseudo-activity, draw the project network, with arcs labeled by the activity name and duration. b) Compute and display in a table the earliest and latest starting and finishing times, as well as slack, for each activity, and identify the critical path(s). C) Draw a Gantt chart of the schedule, based on earliest starting times d) Which activities must be completed by day 60 to ensure that the project is not delayed?arrow_forwardAssume that we are considering the completion of a project one day earlier than the original plan. This project includes five activities and their normal and crash data are as follow: Activity Precedence Duration, Days (normal, crash) Cost (normal, crash) a - 3, 2 $40, $80 b a 2, 1 $20, $80 c a 2, 2 $20, $20 d a 4, 1 $30, $120 e b 3, 1 $10, $80 Note that partial crashing is always allowed. In this project, the critical path is a-b-e. Based on the information above, what is the best way to complete this project one day earlier? (0.5) How much does it cost? (0.5) Show all your work.arrow_forwardUsing the network diagram constructed in Problem 1,(a) Calculate the completion time for the project.(b) Determine which activities are included on the criticalpath.arrow_forward
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