You may need to use the appropriate technology to answer this question.Consider the PERT/CPM network with estimated times in weeks shown in the following figure. The project is scheduled to begin on May 1.StartActivityABCDEFGAHThe three-time estimate approach was used to calculate the expected times and the following table gives the variance for each activity.Variance1.00.41.30.90.20.70.5B0.9E1DC4FG3H7Finish4(a) Give the expected project completion date and the critical path. (Enter your critical path as a comma-separated list.)The expected project completion isweeks from May 1 with a critical path of(b) Based only on the critical path, by what date are you 99% sure the project will be completed? (Round your answer to one decimal place.)weeks from May 1.

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Answered: Consider the PERT/CPM network with…

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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For the A-O-A network shown below, Duration (months) Tp Activity To Tm 2 A 3 C B 10 15 20 А C 10 12 14 G D 20 26 38 1 E 22 33 44 H B E F 15 21 33 5 G 8 10 12 F H 1.5 4 6.5 Determine the following using PERT (i) Expected project duration, variance and standard deviation for each activity (ii) Determine slack for each activity (iii) Target duration if the probability of project completion is 95% and 99% (iv) Probability of completion of project within 60 months and 54 months 4. 3.
The times are written to indicate weeks!!!! Let the start date of the project shown in Activity 3 be January 1, 2020. Determine start dates of all the activities. Draw a Gantt chart. You may use Microsoft Excel, Gantt project, or some other software.
QUESTION 7 The Stone River Textile Mill was inspected by OSHA and found to be in violation of a number of safety regulations. The OSHA inspectors ordered the mill to alter some existing machinery to make it safer (add safety guards, etc.); purchase some new machinery to replace older, dangerous machinery; and relocate some machinery to make safer passages and unobstructed entrances and exits. OSHA gave the mill only 35 weeks to make the changes; if the changes were not made by then, the mill would be fined $300,000. The mill determined the activities in a CPM/PERT network that would have to be completed and then estimated the indicated activity times, as shown in the following Table 6: Table 6 Activity Description A B с D E F G H I J K Activity Description Order new machinery Plan new physical layout Determine safety changes in existing machinery Receive equipment Hire new employees Make plant alterations Make changes in existing machinery Train new employees Install new machinery…
You are the project manager of the softwaration project in the table below. You would like to find the minimum-cost schedule for your project. There is a $500-per-week penalty for each week the prop delayed beyond week 25. In addition, your project team determined that indirect project costs are $2,000 per week. 9 Normal Activity Immediate Predecessor(s) Time (weeks) 1 A B C D E F G H 1 a. What would be your target completion week? The target completion week is week A A, B B D E. F G C.F (Enter your response as an integer.) b. How much would you save in total project costs with your schedule? Total Savings S (Enter your response as an integer) 79832N 10 12 8 Normal Cost (S) 3,000 3,000 10,000 3,000 4,000 2,000 3,000 5,000 2,000 Crash Time (weeks) 1 58829136 Crash Cost ($) 3,000 6,000 12,000 9,000 5,000 5,000 9,000 7,000 8,000
Consider a project that has been modeled as in the table below. Part a) Draw the PERT/CPM network for this project and determine the project’s expected completion time μP and its critical path. Part b) Suppose the standard deviations of the activity durations are σA = 2, σB = 1, σC = 0, σD = 2, σE = 3, and σF = 0. Then please estimate the standard deviation of the overall project’s standard deviation σP . Part c) Suppose for the standard Normal random variable Z, we know P[−1 ≤ Z ≤ +1] ' 68%, P[−2 ≤ Z ≤ +2] ' 95%, and P[−3 ≤ Z ≤ +3] ' 99.7%. Then, approximately what time T is one for which there is only a less than 2.5% chance for the completion time to beat (be shorter than)? *Please answer a-c and type your work and answers or write them neatly please* Thank you
Please solve my Problem as Soon as possible. Thank You!
By using Bar chart planning method, find the following: - Total duration for the project activities shown below - The project completion date (assume the start date is 1/3/2012 Activity A CDEFGHI J Duration 85 2846 7 45 6 (days) Following Activity C,D EFGHIJJ * If the project shown above had a delay of (4 days after (13working days), what would its new delivery date be? B B
A project consists of five activities listed below. The project network is shown for the activities. The critical path is B-C-E and the expected completion time is 8. Optimistic Most Probable Pessimistic Activity Time (hr) Time (hr) Time (hr) A Floor sanding 3 4 5 B Paint mixing 0.5 1 1.5 C Ceiling painting 1 5.5 7 D Wall painting 1 2 9 E Floor buffing 1 2 3 What is the probability that the project can be completed within 9 hr.?
What is the value of the missing item labeled (a) in the table above? Round to the nearest integer. What is the value of the missing item labeled (b) in table above? Round to two decimals. Draw the network diagram for this project. Clearly label the earliest start, earliest finish, latest start, latest finish and slack for each activity. Specify the critical path and the critical activities. State the expected C.P. duration State the variance of the critical path. What is the probability that the dashboard will be delivered within 20 days?
A project has 7 activities P, Q, R, S, T, U, and V. Three time estimates (optimistic, most-likely, pessimistic) are used for each activity. Write down your answers to all parts of the question in the box given below. Give your answer to 3 decimal places. (Note (a) has of 2 parts and (b) has of 3 parts) For activity Q, these time estimates are as follows: optimistic time = 9, most-likely time = 14, pessimistic time = 20. Write down the average activity time for Q the variance of activity time for Q. The critical path of this project has a mean project time of 44 days and a standard deviation of 5 days. Assume project completion time is normally distributed. Find the probability that the project will be completed in 47 days. Find the probability that the project will take more than 40 days. We want to set a deadline for this project completion. If the probability of meeting this set deadline is 0.88, what will be the deadline for this project.
Dave the critical path should also be determined. Here are the activity times 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 an Dave's earliest start (ES) and earliest finish (EF) are Time Activity (weeks) A B С D 6 7 3 3 Immediate Predecessor(s) Activity (weeks) Time A A E F G H Activity ES A 4 7 10 EF 6 Immediate Predecessors B CE DF
Given the following network, with activity times in weeks, determine the earliest and latest activity times and the slack for each activity. Indicate the critical path and the project duration:

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