If the first activity in a given project is D whichprecedes A, B. And activity A precedes H,G. Andactivity B precedes C,E, F. Activities C and E,Gprecede M and activity H precedes I. And activitiesM,I precede activity J, which represents the lastactivity in the project, and the completion timesfor each activity are D=5, A = 3, B=3, H=2 G=5, C=4E= 2 F=8, M J=2 . 1-3, Find1/critical path Method 2/ Early start time3/ Early finish time4/latest start time5/latest finish time6/float time7/ free float timethe project network diagram?

Note: - Since we can answer only up to three subparts we will answer the first three subparts(1, 2,…

Answered: If the first activity in a given…

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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If the first activity in a given project is D which precedes A, B. And activity A precedes H,G. And activity B precedes C,E, F. Activities C and E,G precede M and activity H precedes I. And activities M,I precede activity J, which represents the last activity in the project, and the completion times for each activity are D=5, A = 3, B=3, H=2 G=5, C=4 E= 2 F=8, M J=2 . 1-3, Find 1/latest start time 2/latest finish time 3/float time the project network diagram
A project consists of three tasks: A, B, and C. Task A is known to take five days forsure. Tasks B and C are each dependent on A. B takes five days. C takes seven dayswith a probability of 0.5 and three days with a probability of 0.5. What is the expectedcompletion time of the project?a. 8 daysb. 10 daysc. 11 daysd. 12 days
A project has 92 activities, but only 13 of them are analyzed here. Activity P, 9 days, IP = not given Activity W, 10 days, IP = not given Activity S, 6 days, IP = not given Activity A, 25 days, IP = P, W Activity F, 24 days, IP W, S Activity N, 21 days, IP S Activity E, 28 days, IP = A Activity M, 13 days, IP A, F Activity B, 40 days, IP N Activity H, 10 days, IP = E, M Activity K, 14 days, IP = E, M, B Activity D, 11 days, IP = B Activity R, 10 days, IP = B It has been calculated that LS(K) = 118, LS(D) = 109, LS(H) = 124, LS(R) = 116. %3D %3! %3D What is LS(A)?
A project consists of Six activities: A,B,C,D, E, F. A and B have no preceding activities, but activity C requires that activity B must be completed before C can begin. Activity D cannot start until both activities A and B are complete. Activity F can start any time. Activity E requires activities A and C to be completed before it can start. If the activity times are A: 10 days; B: 4 days; C: 8 days; D: 3 days, E = 2 days, and F: 1 day, * Find out the minimum time possible to complete this project. * Are there any critical path activities? Which one are those?
A project has four major activities. Activity A precedes activity B, activity C precedes activity D. 3-point estimates for activities are A(4, 8, 12 ), B( 3, 6, 9 ), C( 1, 2, 3 ), D( 6, 12, 18 ) weeks. What probability would you assign to a project duration of more than 14 weeks? O a. 0.402 O b. 0.949 O c. 0.75 O d. 0.5
A completion time (X) is expected to be 52 weeks, with a variance of 64. What is the probability the project will be completed 16 weeks before its expected completion date? Assume X is normal.
Using your results from Problem 6,(a) Calculate the probability that the project will be completedin 38 weeks.(b) Calculate the probability that the project will be completedin 42 weeks
According to Goldratt’s critical chain theory, what should you do in order to reduce risk in project schedules? A: Start activities in the feeder chains as late as possible. B: Add buffers to the critical chains. C: Start activities in the critical chains as early as possible. D: Start activities in the feeder chains as early as possible. 2. You are adding duration buffers that are non-workable schedule activities to manage uncertainty in your project schedule. What tool or technique are you using? A: Parametric estimating B: Critical path method C: Three-point estimating D: Critical chain method
When using a project triangle to illustrate conflicting priorities, Microsoft suggests that if the problem is in the fixed leg, work on the other two legs. For example, if the project must not exceed the budget and is starting to run over, adjust the schedule, the scope or both. However, if the problem is not related to a fixed leg, the adjustment might have to be in the remaining leg. So, when faced with an inflexible budget (fixed leg) and the schedule is slipping (problem leg), the project scope (remaining leg) might have to be adjusted. Why is explaining this situation to management sometimes a very difficult task for the systems analyst?
Limbo Technologies has embarked on another project that has an estimated completion time of 40 weeks and a standard deviation of 5 weeks. It is estimated that the project completion time is normally distributed. i)What is the probability of finishing the project in 38 weeks or less? ii)The due date for the project is set so that there is a 90% chance that it will finish by this date. What is the due duration? ACTIVITY PREDECESSOR NORMAL TIME (WEEKS) CRASH TIME (WEEKS) NORMAL COST ($) CRASH COST ($) A - 4 2 1000 1600 B - 6 3 3000 3500 C A 3 1 2500 3000 D A,B 6 5 1500 1850 E D 4 2 3500 4200 F C 4 3 2250 3000 G D 3 2 1900 2500 H F,G,E 2 1 400 500
What is the definition of the latest completion time (LCT) of a project activity?a. LCT(Ai) = Max{LST(Aj) for which Ajis a successor of Ai}b. LCT(Ai) = Min{LST(Aj) for which Ajis a successor of Ai}c. LCT(Ai) = Max{LST(Aj) for which Ajis a predecessor of Ai}d. LCT(Ai) = Min{LST(Aj) for which Ajis a predecessor of Ai}
A Company wants to execute a project within 95 weeks. This project includes 10 activities (labeled A, B, ..., J), where their precedence relationships are shown in the following table: Predecessor Normal Crash Normal Cost Crash Cost Activity Activity Time(weeks) Time(weeks) (in million S) (in million S) A 32 28 160 180 В 28 25 125 146 C A 36 31 170 210 D B 16 13 60 72 E 32 27 135 160 B 54 47 215 257 D 17 15 90 96 H E,G 20 17 120 132 E,G 34 30 190 226 F.C 18 16 80 84 a) Draw the project network according to the previous table. (b)Find all possible paths and the corresponding lengths to finish the project. (c) Which is the critical path and what is its length? (d) Determine the least expensive way to crash activities to reduce overall duration to 95 weeks using Marginal cost analysis.

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