Operations Management: Processes And Supply Chains (12th Edition) (what's New In Operations Management)
Operations Management: Processes And Supply Chains (12th Edition) (what's New In Operations Management)
12th Edition
ISBN: 9780134742205
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 7, Problem 20P

Jordanne King, the project manager for Webjets International, Inc., compiled a table showing time estimates for each of the activities of a project to upgrade the company’s Web page, including optimistic, most likely, and pessimistic.

  1. Calculate the expected time, t e , for each activity.
  2. Calculate the variance, σ 2 , for each activity.

Chapter 7, Problem 20P, Jordanne King, the project manager for Webjets International, Inc., compiled a table showing time

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Jordanne King, the project manager for Webjets International, Inc., compiled a table showing time estimates for each of the activities of a project to upgrade the company’s Web page, including optimistic, most likely, and pessimistic.a. Calculate the expected time, te, for each activity.b. Calculate the variance, s2, for each activity.Activity         Optimistic (days)      Most Likely (days)     Pessimistic (days)A                        3                                  8                            19B                         12                              15                            18C                        2                                 6                              16D                         4                                 9                            20E                         1                                   4                               7
The project manager of Good Public Relations gathered the data shown in Table 7.15 for a new advertising campaign.a. How long is the project likely to take?b. What is the probability that the project will take more than 38 weeks?c. Consider the path A–E–G–H–J. What is the probability that this path will exceed 38 weeks?
Find the activity duration (t), latest start (LS) and latest finish (LF) times for activity A. t=? 5 LS=? A 2 16 LF=? O t=11 weeks, LS-5 weeks, LF-16 weeks O t=21 weeks, LS-7 weeks, LF-18 weeks O t=11 weeks, LS=7 weeks, LF=18 weeks O t=11 weeks, LS=18 weeks, LF=7 weeks O t=11 weeks, LS-3 weeks, LF-14 weeks

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Operations Management: Processes And Supply Chains (12th Edition) (what's New In Operations Management)

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