States)BE-Text Predictions: OnActivityAI U2. Given below are additional details for the Evergreen Company's construction project, i.e.three time estimates.BCDALLEFOptimistic0.5ARDCCDGEeNormal2.510.90.5Most Likely12321AaBb CcDdEeNo Spacing1AaBbCcL AaBbCcDd.Heading 1Heading 2Pessimistic22.53.531.11.5a) Calculate the expected completion times and completion variances for each activity.b) What are the expected days to completion now for Evergreen?c) Compute the variance and standard deviation of the Evergreen project's completion time.d) What is the probability that the Evergreen Company's project can be completed in 6.5days?e) What would be Evergreen Company's completion days if we needed a 95% confidencelevel?f) Which noncritical activities should Evergreen Company monitor closely? Why?Focus E

Forward Pass:Early Start (ES) = Max EF value from immediate Predecessor(s)Early Finish (EF)= ES +…

Answered: 2. Given below are additional details…

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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Please help with (b) and (c) as both answers given were incorrect! Please need correct answers. Blue Lagoon is a contractor that installs residential swimming pools, projects that consist of nine major activities. The activities, their immediate predecessors, and the activity time estimates (in days) are shown. Activity Immediate Predecessor Optimistic Most Probable Pessimistic A 3 5 6 B 2 4 6 C A, B 6 7 8 D A, B 8 10 11 E B 2 4 6 F C 1 2 3 G D 6 10 12 H D, F 7 9 11 I E, G, H 3 4 5 (a) What are the critical activities? (Enter your answers as a comma-separated list.) $$A, D, G, I (b) What is the expected time (in days) to complete the project? (Round your answer to two decimal places.) (c) Based only on the critical path, what is the estimated probability that the project can be completed in 28 or fewer days? (Round your answer to four decimal places.)
how to solve this problem A and B? A.Find the critical path and the entire project completion time.B.Which task has the most slack time?
Table 7.5 Activity Predecessor Time (days) A 8 B C D E F G H с Select one: 1 1 A. 23 days B. 29 days C. 25 days D. 27 days 1 A,B с A D, E G A W U ∞0 8 wor 6 3 10 8 5 Using Table 7.5, what is the earliest completion time of this project? 3
2. A small software development project at Krishna Dhir's firm has five major activities. The times (in days) are estimated and provided in the table below: Activity Immediate Predecessor a m b A − 2 5 8 B − 3 6 9 C A 4 7 10 D B 2 5 14 E C 3 3 3 Part 2 d) The probability that it will take more than 17 days to complete this projectbe is __ (keep two decimal places). e) The due date that yields a 98% chance of completion is ____ days (keep two decimal places).
A plant is acquiring new production machinery. Before the machinery can be fully functional, a number of activities must be performed. The activities, their precedence relationships, and their durations are shown in the following table. Days Activity a m b Immediate Predecessors A 6 8 10 - B 4 5 6 - C 1 2 3 - D 8 18 28 A E 4 5 6 C F 7 8 9 B, D, E G 4 5 9 B, D, E H 12 13 14 F I 8 9 10 F J 4 5 6 G, H K 2 5 8 I, J L 1 2 6 G, H Use excel to answer the following; a) Develop a project network for this problem. b) Determine the expected duration and variance for each activity. c) Determine the EST, EFT, LST, LFT, and slack for each activity.
answer into table
*(b.) (in Microsoft Project) create the network diagram and task schedule table and then provide (in Microsoft Word) the critical path for the project and give in a table the ES, EF, LS, and LF, free float and total slack for each activity (taking information from Microsoft Project).
1. Using Microsoft Excel TM prepare a Gantt Chart for the following project. Activity Predecessor(s) Duration (Days) 1. Forming the problem statement 2. Identifying functional requirements 3. Identifying constraints and limitations 4. Defining a schedule 5. Defining the design parameters 6. Identifying alternatives 7. Evaluating and analyzing alternatives 8. Select a solution 9. Gather supplies 10. Construct prototype 11. Test performance 12. 1 1 1 1 1 2,3 1 2 1 2 7 1 8 4 10 1 Redesign 13. 11 2 Demonstrate solution to 12 1 class 5 CO
12:23 Ill 5G Problem 1 The following table gives expected times and variances for a probabilistic duration type of project (we are not given and we don't need the optimistic, most likely, and pessimistic time estimates). Activity Expected Time Variance A 4 0.44 B 3 0.69 C 7 2.25 D 11 2.25 E 4 0.11 F 9 1.36 G 6 0.44 H 6 0.69 I 7 1.36 J 13 1.00 K 3 0.44
A plant is acquiring new production machinery. Before the machinery can be fully functional, a number of activities must be performed. The activities, their precedence relationships, and their durations are shown in the following table. Days Activity a m b Immediate Predecessors A 6 8 10 - B 4 5 6 - C 1 2 3 - D 8 18 28 A E 4 5 6 C F 7 8 9 B, D, E G 4 5 9 B, D, E H 12 13 14 F I 8 9 10 F J 4 5 6 G, H K 2 5 8 I, J L 1 2 6 G, H a) Develop a project network for this problem. b) Determine the expected duration and variance for each activity. c) Determine the EST, EFT, LST, LFT, and slack for each activity. d) What is the critical path and project completion time? e) What is the probability that the job will finish in 59 days or less? f) What is the probability that the job will finish in 54 days or more? g) Submit your…
6. Suppose you are given the following data for a project: Activity Expected Activity Time (in days) ABCDEFGH F 24 24 30 Variance 2.1 2.8 1.8 H What is the probability the project will take less than 80 days? a. 2.5% b. 16% c. 84% d. 97.5% e. 99.85% I Critical Path Z 27 7 N
Q2: For the activities shown below, use Activity on Arrow diagram (A.O.A) to find: 1. Total Duration of the project 2. Critical paths 3. Create a table for the following information (E.S, E.F, L.F, L.S and T.F) Activity A B C D Duration 5 7 4 8 days Followed by DE D 4F G H 1 E F 4 8 J J G 7 J K K H 9 1 J K L M N R 12 9 K M L 6 5 LN 3 15 R 7 R 8 1

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