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- The following is a table of activities associated with a project at Rafay Ishfaq's software firm in Chicago, their durations, what activities each must precede and the crash cost to reduce duration per ← week: Crash Cost/Week Activity A (start) B С E F(end) Duration (weeks) 3 2 6 2 Activity A Precedes B, C E F F Suppose that Rafay is only given 10 weeks (instead of 13) to complete the project. By how many weeks should each activity be crashed in order to meet the deadline? Assume that you can crash an activity down to 0 weeks duration $380 $110 $240 $160 $400 Each Activity Should be Reduced BYYou may need to use the appropriate technology to answer this question. A project consists of five activities as shown in the following table. Activity Floor sanding Floor buffing Paint mixing Wall painting Ceiling painting Start Optimistic Time (hr) Most Probable Time (hr) Start Floor Buffing Paint Mixing Naturally, paint mixing precedes the painting activities. Also, (a) Construct the PERT/CPM network for this problem. Floor Sanding 4 Paint Mixing 4 0.5 3 3 Paint Wall Paint Ceiling Paint Ceiling Paint Wall 5 5 1 4 7.5 Floor Sanding Pessimistic Time (hr) Floor Buffing Finish 6 Finish 6 ceiling painting and floor sanding must be dor 1.5 11 9 i Start Start prior to floor buffing. Floor Sanding Paint Mixing Floor Buffing Paint Mixing Paint Ceiling Paint Wall Paint Wall Paint Ceiling Floor Buffing Floor Sanding Finish FinishYou are in charge of a project. Your team has determined that there are 7 activities to be completed. Here are the activities, the time to complete the activity and the immediate predecessor of the activity. Using this data 1) construct a Gantt Chart, 2) determine the time it will take to complete the project, 3) You are monitoring the progress of this project and discover that activity C is in danger of taking longer than planned due to funding issues. What options do you have to get the project back on track? Activity Time Immediate Predecessor A 10 Weeks None B 6 Weeks A C 7 Weeks A D 6 Weeks B E 8 Weeks C F 3 Weeks D G 4 Weeks F
- 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.I need assistance with the following questions in: Project Scheduling. This is a follow up to a question answered earlier. Question 1) was answered. 1) 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 2) The company decided that the project in the previous problem has to be expedited in order to optimize (minimize) the project cost. Expediting can be used to trade direct cost for indirect cost, since expediting the project reduces the indirect cost of the project by a fixed amount per day, while expediting an activity increases its total direct cost. The Accounting Department found that indirect costs amount to $100 per day, while activity direct costs as well as their normal and expedited times are given in the table below.…The following activities are part of a project to be scheduled using CPM: ACTIVITY IMMEDIATE PREDECESSOR TIME (WEEKS) 6 ABCDEFG a. What is the critical path? A A C B, D D E, F Number of weeks A-C-D-F-G OA-B-D-F-G A-B-E-G OA-C-D-E-G b. How many weeks will it take to complete the project? c. How much slack does activity B have? Slack of activity B 724537 weeks
- The following is a table of activities associated with a project at Rafay Ishfaq's software firm in Chicago, their durations, what activities each must precede and the crash cost to reduce duration per week: Activity Duration (weeks) Precedes Crash Cost/Week A (start) B с E F (end) 2 2 5 2 3 Activity B. C E F F A Suppose that Rafay is only given 7 weeks (instead of 10) to complete the project. By how many weeks should each activity be crashed in order to meet the deadline? Assume that you can crash an activity down to 0 weeks duration, Each Activity Should be Reduced BY (weeks) $380 $110 week(s) $200 $160 $450PERT/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 chartThe following is a table of activities associated with a project at Rafay Ishfaq's software firm in Chicago, their durations, what activities each must precede and the crash cost to reduce duration per week: Activity Duration (weeks) Precedes Crash Cost/Week A (start) B 224IN 2 A C E F (end) Suppose that Rafay is only given 8 weeks (instead of 10) to complete the project. By how many weeks should each activity be crashed in order to meet the deadline? Assume that you can crash an activity down to 0 weeks duration. Each Activity Should be Reduced BY (weeks) week(s) 1 Activity B, C $380 $110 EFF $220 $140 $400
- Dave 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 and the critical path should also be determined. Here are the activity times: Activity Time (weeks) Immediate Predecessor(s) Activity Time (weeks) Immediate Predecessor(s) A B с D 7 8 80 31 3 A A Dave's earliest start (ES) and earliest finish (EF) are: Activity A EFI G H ES EF 7 4 5 11 6 B B C, E D, FThe following is a table of activities associated with a project at Rafay Ishfaq's software firm in Chicago, their durations, what activities each must precede and the crash cost to reduce duration per week: Activity Duration (weeks) Precedes Crash Cost/Week A (start) B C E F (end) 3 2 6 2 3 Activity B, C E F F A B Suppose that Rafay is only given 9 weeks (instead of 12) to complete the project. By how many weeks should each activity be crashed in order to meet the deadline? Assume that you can crash an activity down to 0 weeks duration. $380 $130 $240 Each Activity Should be Reduced BY (weeks) 0 week(s) week(s) $150 $400Coleman Rich Control Devices, Inc., produces custom-built relay devices for auto makers. The most recent project undertaken by Rich requires 14 different activities. Rich's managers would like to determine the total project completion time (in days) and those activities that lie along the critical path. The appropriate data are shown in the following table: Time (days) Immediate Time (days) Immediate Activity a m b Predecessor(s) Activity a m b Predecessor(s) A 4 7 8 — H 3 3 6 E, F B 1 2 3 — I 3 7 9 G, H C 7 7 7 A J 2 6 9 I D 6 9 13 A K 8 9…