The following table shows estimates of activity times (in weeks) for a project:b. What is the probability that the project will be completed within 33 weeks?c. What is the probability that the project will be completed in more than 34 weeks?Activityd. What is the probability that the project will be completed in 35 weeks?ABCDEFGАGOptimistic Most ProbableTimeTime563.543675946.5Suppose that the critical path is A-C-E-F-G. Use Appendix A to answer the questions. Do not round intermediate calculations. Round your answers to three decimal places.a. What is the probability that the project will be completed within 36 weeks?610.5PessimisticTime74.55109715

A project has 7 activities with 3 time estimates in weeks:ActivityOptimistic TimeMost Probable…

Answered: The following table shows estimates of…

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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Given the information below, what are the estimated expected (mean) times (in weeks) for activities A-H? What are the estimated standard deviations (in weeks) in the times for activities A-H?
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Kirti and the team want to ascertain the expected activity time and the variance of activity zeta of the company where optimistic time for that is 45 days , pessimistic time is 155 days and the most likely time is 60 days ?
The following represents a project that should be scheduled using CPM: TIMES (DAYS) ACTIVITY IMMEDIATE PREDECESSORS ABCDEFGH G H A A-D-G-H A-C-F-H B-E-G-H A-D-F-H A B C,D D, E F,G b. What is the critical path? a 1 1 1 2 3 3 1 2 m 3 2 2 3 4 4 4 4 D53341565 b 11
2. A small software development project at Krishna Dhir's firm has five major activities. The times (in days) are estimated and provided in the table below: Activity Immediate Predecessor a m b A − 2 5 8 B − 3 6 9 C A 4 7 10 D B 2 5 14 E C 3 3 3 Part 2 d) The probability that it will take more than 17 days to complete this projectbe is __ (keep two decimal places). e) The due date that yields a 98% chance of completion is ____ days (keep two decimal places).
A 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)
c) Total cost of crashing the project by 2 days = $_________ (Enter your response as an integer.)
The following represents a project that should be scheduled using CPM: ACTIVITY ABCDEFGH А с IMMEDIATE PREDECESSORS IAABUDR C,D D,E F,G TIMES (DAYS) b a 1 1 3 - NTTTTE 1 1 1 1 2 m 5 WaNNASNU 2 5 4 2 2 6 3 ∞∞NWO3770 9 10 12 8
Three activities are candidates for crashing on a project network for a large computer installation (all are, of course, critical). Activity details are in the following table: Normal Activity Time (days) A B с 7 4 11 Crash Time (days) 6 2 9 Normal Cost $5,000 $1,400 $4,200 Total Cost with Crashing Immediate Predecessor(s) $5,500 $3,100 $6,200 A
14 The expected activity time in PERT analysis is calculated as: Select one: a. the sum of the activity variances, divided by six. b. the sum of the optimistic, pessimistic, and most likely times. c. the sum of the optimistic, pessimistic, and most likely times, divided by six. d. the simple average of the optimistic, pessimistic, and most likely times. e. the weighted average of a, m, and b, with m weighted 4 times as heavily as a and b.
6. Suppose you are given the following data for a project: Activity Expected Activity Time (in days) ABCDEFGH F 24 24 30 Variance 2.1 2.8 1.8 H What is the probability the project will take less than 80 days? a. 2.5% b. 16% c. 84% d. 97.5% e. 99.85% I Critical Path Z 27 7 N

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