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(i) The time estimates (in hours) for the activities of a PERT network are given below: Activity Optimistic time | Most likely time Pessimistic time 1-2 1 1 7 1-3 1 4 7 1-4 2 2 8 2-5 1 1 1 3-5 14 4-6 2 5 8 5-6 3 6 15 (a) Draw the project network (b) Identify all paths through it and write critical path. (c) Determine the expected project length (d) Calculate standard deviation and variance of the project length (e) What is the percentage of confidence that the project will complete at least 4 weeks earlier then expected time

(i) The time estimates (in hours) for the activities of a PERT network are given below: Activity Optimistic time | Most likely time Pessimistic time 1-2 1 1 7 1-3 1 4 7 1-4 2 2 8 2-5 1 1 1 3-5 14 4-6 2 5 8 5-6 3 6 15 (a) Draw the project network (b) Identify all paths through it and write critical path. (c) Determine the expected project length (d) Calculate standard deviation and variance of the project length (e) What is the percentage of confidence that the project will complete at least 4 weeks earlier then expected time

Practical Management Science
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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(i) The time estimates (in hours) for the activities of a PERT network are given below: Activity Optimistic time | Most likely time | Pessimistic time 1-2 1 1 7 1-3 1 4 7 1-4 2 2 8 2-5 1 1 1 3-5 2 14 4-6 2 8 5-6 3 15 (a) Draw the project network (b) Identify all paths through it and write critical path. (c) Determine the expected project length (d) Calculate standard deviation and variance of the project length (e) What is the percentage of confidence that the project will complete at least 4 weeks earlier then expected time
Transcribed Image Text:(i) The time estimates (in hours) for the activities of a PERT network are given below: Activity Optimistic time | Most likely time | Pessimistic time 1-2 1 1 7 1-3 1 4 7 1-4 2 2 8 2-5 1 1 1 3-5 2 14 4-6 2 8 5-6 3 15 (a) Draw the project network (b) Identify all paths through it and write critical path. (c) Determine the expected project length (d) Calculate standard deviation and variance of the project length (e) What is the percentage of confidence that the project will complete at least 4 weeks earlier then expected time
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