Consider the following work breakdown structure:ActivityStartUVWPrecedesU,VW25 days35 daysW.XZDuration Estimates (Days)Optimistic352826XY28YZ26ZEnd36What is the estimated slack time for activity W?45 days85 days0 daysMost Likely50 40 35 40 29 5060Pessimistic655244523884

In a CPM network, there are various tasks or activities that make up the network. All of these tasks…

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Practical Management Science

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ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

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Stage 2 General Mathematics - Summative Discrete Models Test 1. Nine activities are needed to prepare a delivery of sneakers from the factory to the customers. The duration, in minutes, and immediate predecessors for these activities are shown in the table below. Prerequisite(s) Earliest Start Time Latest Start Time Activity A B C D E F G H Duration 5 3 8 9 I 26534 - ABUSE C, D C, D E F G, H a) Given the information in the first 3 columns, draw the Precedence Network for these activities. Slack Time b) Using the Critical Path Method, complete the table above (with Earliest Start Time, Latest Start Time and Slack Time columns) then state the Critical Path in the space below. c) What is the minimum completion time for the preparation of the delivery?
Class Exercise #1 Time estimates Expected Activity Optimistic Most Likely Pessimistic Time (ET) a b 31 49 44 56 с 48 72 D 22 34 Assume each time estimate consists of one data point A B Start m 40 50 60 31 A B D Variance (0²) End 1) What is the estimated expected (mean) time for activity C? A. 48 days B. 72 days C. 44 days D. 60 days E. 100 days
Job times which includes processing and set up times are shown below: Job Job Time (bs) Due Date (bs) 15 24 20 8 6 A > B C D 12 6 14 3 7 B Using FCFS, determine the average flowtime
List two rework cost-cutting methods. How does progressive delivery affect both methods?
Time according to schedule (days) Time according to schedule (days) Activity Activity A G C H E
Activity Normal_time Crash_time Normal_cost Crash_cost Slack 28 22 5800 6700 0 30 4200 4200 1 13 4500 4500 0 25 4300 6700 1 18 5700 6700 2 20 5200 6500 2 AB C D E F 30 13 33 29 Previous 34 The table shows normal time (in days), crash time (in days), normal cost (in dollars), crash cost (in dollars) and slack time (in days) of activities in a small construction project. According to this table which activity must be crashed first? Assume there is only one critical path. (Only type the name of the activity, Example: A. Next
Task time estimates for the modification of an assembly line at Jim Goodale's Carbondale, Ilinois, factory are as follows Activity A B C D E F G Time hours) Immediate Predecessor(s) (in 70 7.0 5.0 70 40 75 40 A B.C BC D EF This exercise confans only parts d b, and c d) Using the Ine drawing tool five femmes, draw a Gantt chart for activities C through G of the project based on the early times Carefully follow the instructions above, and only draw the required objects 8 C D r 124 26 28 30 32 Q C
ACTIVITY Immediate Predecessor Normal Duration (wks) Minimum Duration (wks) Crash Costs ($/wk) A --- 4 4 --- B --- 3 2 100 C A, B 5 3 200 D C 4 4 --- E C 2 1 300 F C 1 1 --- G D 3 2 200 H E 1 1 --- I F 1 1 --- J H, I 3 1 100 What is the slack time for Activity F and the late start for Activity H? Group of answer choices 2 weeks, 11 weeks 1 weeks, 11 weeks 3 weeks, 10 weeks 2 weeks, 12 weeks None of the above are correct.

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What is the estimated slack time for activity W? 45 days 85 days 0 days 25 days 35 days