Kelle Carpet and Trim installs carpet in commercial offices. Peter Kelle has been very concerned with the amount of time it took to complete several recent jobs. Some of his workers are very unreliable. A list of activities and their optimistic completion time, the most likely completion time, and the pessimistic completion time (all in days) for a new contract are given in the following table: Activity ABCDEFGH-K А a 4 4 1 6 3 2 5 10 5 14 3 Time (days) m 5 527 7 5 3 9 11 7 16 7 Immediate b Predecessor(s) 9 18686 3 7 4 32981 11 11100444OOM B, D A, E E A, H, I
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- A project consists of five activities as shown in the following table. Activity Floor sanding Floor buffing Paint mixing Wall painting Ceiling painting Optimistic Time (hr) Most Probable Time (hr) 4 4 0.5 2 3 5 5 Сл 1 3 7.5 Pessimistic Time (hr) 6 6 1.5 10 9 Naturally, the paint mixing precedes the painting activities. Also, both ceiling painting and floor sanding must be done prior to floor buffing. (a) Construct the PERT/CPM network for this problem.Jamison Day Consultants has been entrusted with thetask of evaluating a business plan that has been divided into foursections—marketing, finance, operations, and human resources.Chris, Steve, Juana, and Rebecca form the evaluation team. Eachof them has expertise in a certain field and tends to finish thatsection faster. The estimated times taken by each team memberfor each section have been outlined in the table below. Furtherinformation states that each of these individuals is paid $60/hour.a) Assign each member to a different section such that JamisonConsultants’s overall cost is minimized.b) What is the total cost of these assignments?Times Taken by Team Members for Different Sections (minutes)MARKETING FINANCE OPERATIONS HRChris 80 120 125 140Steve 20 115 145 160Juana 40 100 85 45Rebecca 65 35 25 752:30 PM ě 0.3KB/s 1ll 54 4G+ 00:15:12 Remaining Multiple Choice The primary difference between PERT and CPM is that CPM uses probabilities on the activity times and PERT does not. O. PERT considers activity costs and CPM does not. PERT can assign probabilities to activity times and CPM does not. CPM considers activity costs and PERT does not. 5 of 20 II
- Environment Recycling, Inc. must clean up a large automobile tire dump under a state environmental cleanup contract. Suppose that some of the activities in the Environment Recycling, Inc. project can be crashed.The table below shows the crash times and costs associated with performing the activities at their original (normal) times and also for the crash times (all times are in weeks). Normal Crash Normal Crash Activity Predecessor(s) Time Time Cost Cost A — 6 5 $490 $640 B A 9 7 1,800 2,400 C A 8 7 860 1,060 D — 7 6 620 920 E B, C, D 9 7 1,900 2,300 F D 4 2 820 1,320 G D 4 3 620 870 H E 5 4 500 710 I F, G, H 7 5 950 1,550 Choose the correct network for the project. The correct network is C . Identify the critical path. The critical path is A-B-E-H-I. What is the total project completion time? Round your answer to the nearest whole number. ___ weeks What is the lowest cost solution if…The table below contains data for the installation of new equipment in a manufacturing process a Excello Corporation. Your company is responsible for the installation project. Indirect costs are $10,000 per week, and a penalty cost of $9,000 per week will be incurred by your company for every week the project is delayed beyond week12. Activity Immediate Predecessor(s) ABCDEFG long dash- long dash- ABCDEFG A B C D, E E Normal Time Crash Time Normal Cost Crash Cost (weeks) (weeks) ($) ($) 1 14,000 2 3,000 1 40,000 3 22,000 1 8,000 4 13,000 2 16,000 3234 1 6 63 7,000 3,000 12,000 12,000 8,000 5,000 9,000 a. What is the shortest time duration for this project regardless of cost? (Enter your response as a whole number.) b. What is the minimum total cost associated with completing the project in 12 weeks? C. What is the total time of the minimum cost schedule? (enter your response as whole numbers). The total project's duration according to minimum cost schedule is? The minimum cost schedule…PERT/CPM HOMEWORK (MOD 10) In the table below, you will see activities and times associated with each activity. Review the PowerPoint slides in Module 10 , before you start this assignment. Task Preceding Tasks to (optimistic) tm (most likely) tp (pessimistic) A NONE 2 3 10 B NONE 2 3 4 C A 1 2 3 D A 4 6 14 E B 4 5 12 F C 3 4 5 G D,E 1 1 7 1.) Draw the network using the table above. Make sure all 4 values (ES, EF, LS, LF) are listed on the network. 2.) What is the slack for each activity? What is the critical path? Show ALL of your work! 3.) Find the expected project completion time. What is the project variance? 4.) What is the probability that it would be in more than 14 days? Show ALL of your work. *The circle diagram picture is just an example of how it should look it is not apart of the problem in the chart
- Kelle Carpet and Trim installs carpet in commercial offices. Peter Kelle has been very concerned with the amount of time it took to complete several recent jobs. Some of his workers are very unreliable. A list of activities and their optimistic completion time, the most likely completion time, and the pessimistic completion time (all in days) for a new contract are given in the following table: Time (days) Activity a 3 5 3 4 1 2 7 TH 3 10 10 ABCD E F G H I K 61 525DE5 13 m Activity A 3 7 11 15 9 This exercise contains only part a. a) Based on the activity time estimates, the expected times and variance for each of the activities are: (Round your responses to two decimal places.) b 9 5 3 8 5 13 49127 13 Immediate Predecessor(s) Expected Time C B, D A, E A, E F G C H, I VarianceJamison Day Consul tants has been entrusted with thetask of evaluating a business plan that has been divided into foursections- marketing, finance, operations, and human resources.Chris, Steve, Juana, and Rebecca form the evaluation team. Each of them has expertise in a certain field and tends to finish thatsection faster. The estimated times taken by each team memberfor each section have been outlined in the following table. Furtherinformation states that each of these individuals is paid $60/hour.a) Assign each member to a different section such that JamisonConsultants's overall cost is minimized.b) What is the total cost of these assignments?A company must perform a maintenance project consisting of seven activities. The activities, their predecessors, and their respective time estimates are presented here: Activity Break down both machines A Clean machine 1 Clean machine 2 Re-set machine 1 Re-set machine 2 Re-calibrate both machines F Final test 13 days 12 days Designation Immediate Predecessor Time in Days None O 11 days O 10 days ABCDEFG A ABCDF 9 days D and E Using CPM, what is the latest finish time for the last activity in this project (i.e.. the total time to complete the project)? 333 N 2 1 2 1
- Given the data for a project in table Q3, using the following assumptions: 1. 8 hours as working day 2. The company will work all days. 3. Maximum number of workers available per day is 6 4. Activities cannot be break down 5. Budget will distributed equally per day, except for activities (B, H and L), the payment will be after two days of working: means that the first payment will be at the end of day2, then day four and so on. 6. They estimate that the work will starts on the first of November 2017 Develop a report containing the followings: Date of finish BAD O GYEK 1. 2. Early start and Slack time for each activity 3. Resource histogram 4. Cumulative Budget baseline curve 5. Interpret the final report co Table Q3 Duration (Hrs) No of Workers Budget Activity predecessor A None 48 12000 64 32000 C 16 10000 32 4. 12000 B,C 32 8000 B,C 16 6000 G B,C 16 4 10000 H. 64 16000 3. 16 4000 32 1 12000 K 32 3 16000 H. 48 1 12000 Total Budget of RM150000The table below contains data for the installation of new equipment in a manufacturing process at Excello Corporation. Your company is responsible for the installation project. Indirect costs are $12,000 per week, and a penalty cost of $8,000 per week will be incurred by your company for every week the project is delayed beyond week 12. Activity Immediate Predecessor(s) A B с D E F G || D, E Normal Time Crash Time Normal Cost (weeks) ($) 3 7,000 2 3,000 3 12,000 4 12,000 1 8,000 6 5,000 3 9,000 (weeks) 1 2 1 3 1 4 2 D Crash Cost ($) 14,000 3,000 40,000 22,000 8,000 13,000 16,000You are in charge of a project at the local community center. The center needs to remodel one of the rooms in time for the start of a new program. Delays in the project mean that the center must rent other space at a nearby church at additional cost. Time and cost data for your project are contained in 7.10. Your interest is in minimizing the cost of theproject to the community center.a. Using the normal times for each activity, what is the earliest date you can complete the project?b. Suppose the variable overhead costs are $50 per day for your project. Also, suppose that the center must pay $40 per day for a temporary room on day 15 or beyond. Find the minimum-cost project schedule.