Consider the following work breakdown structure:ActivityStartABUDEEсFPrecedesA, BC,DDETIMFFEndTime Estimates (days)Most LikelyOptimistic444542312758506045403670What is the estimated expected (mean) time for activity E?Pessimistic567548493982

Expected time = (optimistic + 4 x most likely + Pessimistic) / 6

Answered: Consider the following work breakdown…

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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Completion of three activities is required to accomplish a job. The administrator would liketo know if differences in the arrangement of the three activities results in different jobaccomplishment times. He selects three workers and demonstrates the activities in random orderto them. Then each worker accomplishes the job with each of the activity arrangements. Thecompletion times are recorded. The following table shows the minutes for each worker toaccomplish each job. Arrangements Workers Time Consumed (minutes) Mr. X Mr. Y Mr. ZA 22.4 18.6 21.5B 19.2 20.2 20.7C 20.3 17.0 20.4 Using one percent level of significance, answer following questions:i. Is there a difference in job accomplishment times among different arrangements?ii. Is there a difference in job accomplishment times between the workers?
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Consider the following work breakdown structure: Activity Start A B C UDEF Precedes A,B C,D D E TIM F F End Time Estimates (days) Most Likely Pessimistic Optimistic 44 45 42 31 27 58 50 60 45 40 36 70 What is the estimated expected (mean) time for activity E? 56 75 48 49 39 82