Concept explainers
(a)
To determine: The probability of the project will take more than 10 weeks to complete where time is given in weeks and the construction of a network diagram for the information given with mean and standard deviation.
Introduction: The time required to complete any activity is estimated with optimistic (optimum time), pessimistic (time required in worst condition), and most likely time (probable time).
(b)
To determine: The probability if the project will take 16.5 or more weeks to complete with the given information of mean and standard deviation.
Introduction: The time required to complete any activity is estimated with optimistic (optimum time), pessimistic (time required in worst condition), and most likely time (probable time).
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OPERATIONS MANAGEMENT CONNECT AC
- Do not use chatgptarrow_forwardA solved PERT problem is detailed in the table below. The expected time and variance values and the critical activities are given in the table below. Answer the following questions by filling the blanks (WRITE YOUR ANSWERS TO 2 DECIMAL PLACES. DO NOT ROUND UP OR DOWN): a. The expected project completion time for this problem is and the standard deviation is . b. There is a 0.95 probability that the project will be completed by weeks. Activity Expected time Variance Critical? A 10 0.36 Yes B 7 0.11 No C 7 0.25 No D 3 0.48 Yes E 5 1.60 Yes F 7 0.69 No G 2 3.69 Yesarrow_forwardyou can solve it on table and i will copy itarrow_forward
- 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 Barrow_forwardThe table below contains information about an environmental clean-up project in the township of Hiles. Shorten the project threethree weeks by finding the minimum-cost schedule. Assume that project indirect costs and penalty costs are negligible. Identify activities to crash while minimizing the additional crash costs. Activity Normal Time (weekweeks) Crash Time (weekweeks) Cost to Crash ($ per weekweek) Immediate Predecessor(s) A 55 44 300300 None B 77 44 5050 None C 77 66 300300 A D 77 66 250250 A E 11 11 long dash— B F 33 33 long dash— C, D G 55 44 200200 D, E H 44 22 200200 F I 22 22 long dash— G Part 2 Fill in the table below with the activity times after crashing to show the resulting schedule. (Enter your responses as…arrow_forwardGiven the following AON network and activity time estimates, determine the expected project completion time and variance, as well as the probability that the project will be completed in 28 days or less: Start Finish Time Estimates (weeks) Activity m 5 17 2 7 10 13 3 7 4 3 5 5 4 6 6. 3 3 3 4arrow_forward
- The Farmer's American Bank of Leesburg is planning to install a new computerized accounts system. Bank management has determined the activities required to complete the project, the precedence relationships of the activities, and activity time estimates, as shown in the following table. Use POM- QM to analyze this project. According to the result of POM-QM, the expected project completion time is (type number only, no text) Activity a b C d C f 8 k Activity Description Position recruiting System development System training Equipment training Manual system test Preliminary system changeover Computer-personnel interface Equipment modification Equipment testing System debugging and installation Equipment changeover Activity Predecessor a a b, c b, c d, e d, e h f.g a 5 3 4 5 I 1 3 Time Estimates (weeks) 1 1 2 5 m 8 12 7 8 I 4 6 2.5 1. 2 8 b 17 15 10 23 1 13 9 7 1 2 11arrow_forwardThe table below contains information about an environmental clean-up project in the township of Hiles. Shorten the project three weeks by finding the minimum-cost schedule. Assume that project indirect costs and penalty costs are negligible. Identify activities to crash while minimizing the additional crash costs. Normal Time Activity (weeks) Crash Time (weeks) Cost to Crash ($ per week) Immediate Predecessor(s) 59 5 4 4 82233-6 3337 ABCDEFGH - 4 200 None 300 None 200 A 250 A B C, D 1 150 D, E 350 F G 4 4 Fill in the table below with the activity times after crashing to show the resulting schedule. (Enter your responses as whole numbers.) Time according to schedule (weeks) 3 1 Activity Time according to schedule (weeks) Activity A 4 F B 8 G C 3 H 6 D 3 4 E 3 The cost of shortening of project is $ ☐. (Enter your response as a whole number.)arrow_forwardPlease solve my Problem as Soon as possible. Thank You!arrow_forward
- Activities, preceding activities, normal and crashed completion times of each of the activities and crashed costs of activities per week of a project are given in the following table. Activity Preceding Activity Normal Crashed Completion time (week) Crashed Cost Completion Time (week) 7 per week A 7 B $500 C 4 3 $700 $600 A A, C В, D D, E D 7 E F 10 9. $800 9 8 $400 i. Draw the network diagram linking all the activities in a way that it shows if there exist any preceding activity/activities before starting each of the mentioned activities in the above table. ii. Find the earliest start time, the earliest finish time, the latest start time and the latest finish time of each of the activities in the drawn diagram of the project and hence the completion time of the project and the critical path.arrow_forwardYou are the project manager of the software installation project in Table. You would like to find the minimum- cost schedule for your project. There is a $1,000-per-week penalty for each week the project is delayed beyond week 25. In addition, your project team determined that indirect project costs are $2,500 per week. a. What would be your target completion week? b. How much would you save in total project costs with your schedule?arrow_forwardPlease help me experts to solve this problem. Thank you.arrow_forward
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