There are five activities on a project's critical path and they have standard deviations of 1, 1, 3, 5, 5 days. The standard deviation (in days) of the critical path is: OA. 8.8 OB.9.8 OC.7.8 COD.4.6 O.E. 10.2 OF 10.6
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- Mueller & Associates is a urban planning firm that is designing a new public park in an Omaha suburb. Coordination of the architect and subcontractors will require a major effort to meet the 45-week completion date requested by the owner. The Mueller project manager prepared the following project network. Start A B F H 0 D E Finish Estimates of the optimistic, most probable, and pessimistic times (in weeks) for the activities are as follows. Activity Optimistic Most Probable A 4 8 Pessimistic 12 B 6 7 8 C 6 12 18 D 3 5 7 E 6 9 18 F 5 8 17 G 10 15 20 H 5 6 13A company is willing to develop their rocket before the end of current financial year which is now 28 weeks away. The chief engineer of the company has decided to use PERT technique in order to plan, schedule and control program of development for the data given in table below. What is the probability that the program will be completed by the end of the current financial year? (all durations are in weeks). (i) G) Optimum Duration Most likely duration Pesimistic duration 1 2 3 8 13 3 2 8 4 3 8 10 4 7 10 3 6. 3 8 4 9 10 4 8. 4 9. 5 7 9. 12 6. 5 11 7 9. 14 8 4. 00 2.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 11
- What is the minimum cost of crashing the following project that Roger Solano manages at Slippery Rock University by 4 days? Normal Crash Activity Time (days) Time (days) A B C The total cost of crashing the project by 4 days is $. (Enter your response as a whole number.) E 5 8 6 5 By how many days should each activity be crashed to reduce the project completion time by 4 days? Fill in the table below. (Enter your responses as whole numbers.) 4 6 5 3 Activity A B C D E Normal Cost $800 $200 $600 $750 $1,200 Total Cost with Crashing Immediate Predecessor(s) $1,100 $400 $650 $1,500 $1,650 Each Activity Should be Reduced BY (days) ACA project has a critical path with an expected duration of 22 and variance of 14. What is the probability it will be completed within 20-25 weeks (inclusive)? (the range of the answers account for rounding errors) Group of answer choices Between 55% and 58% Between 17% and 20% Between 47% and 52% Between 64% and 67% Between 60% and 63%Suppose that a task in a project has the following time estimates: to=optimistic completion time=10 weeks tm=most likely completion time=17 weeks tp=pessimistic completion time=19 weeks Compute the expected task variance. The task expected task variance is _____ weeks. (Enter your response rounded to two decimal places.)
- The expected number of days to completion for a different project is E(x) = 3.32 The variance of days to completion is var(x) = 1.22 The project cost involves A fixed cost (in thousands of dollars) of FC = $83.783 A variable cost for each day taken to complete the project ($000) VC = $9.774 16 The standard deviation of the project cost is $________. a 13.041 b 12.245 c 11.497 d 10.796Which of the following statements regarding PERT analysis is TRUE? Select one: O a Project variance is the sum of all activity variances. O b. Project standard deviation is the sum of all critical activity standard deviations. O c. Each activity has two estimates of its duration. O d. Only critical activities contribute to the project varianceA project has the following tasks and duration estimates given. These three tasks are done in succession on a project. Task Optimistic Estimate Most Likely Estimate Pessimistic Estimate Alpha 30 days 40 days 50 days Beta 20 days 25 days 28 days Charlie 4 days 10 days 12 days Delta 25 days 30 days 50 days What is the expected duration for the project? (3 points) What is the variance for the project? (3 points) What is the standard deviation of the project? (3 points) What is the range of the duration of the project given 3 sigma? (3 points)
- Identify the term being described for each of the following: (a). A sequence of activities in a project. (b). The longest time sequence of activities in a project. (c). Used when two activities have the same starting and finishing points. (d). The difference in time length of any path and the critical path. (e). The statistical distribution used to describe variability of an activity time. (f). The statistical distribution used to describe path variability. (g). Shortening an activity by allocating additional resources.You are given the following data for an activity: ES = 10 EF = 15 LS = 16 Which of the following can you determine from this data? A. The activity's float and duration B. Only the activity float C. Only the activity duration D. Neither the activity's float nor its duration2:30 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