Internet Homework Problems12-33. Zuckerman Wiring and Electric is a company that installs wiring and electrical fixtures in residential construction. John Zuckerman has been concerned with the amount of time that it takes to complete wiring jobs. Some of his workers are very unreliable. A list of activities and their optimistic, their pessimistic and their most likely completion times in days are given in the following table:ACTIVITYDAYSIMMEDIATEPREDECESSORSambA368B244C123D678CE246B, DF61014A, EG124A, EH369FI101112GJ141620CK2810H, IDetermine the expected completion time and variance for each activity.========================================================http://wps.prenhall.com/bp_render_qam_11/197/50555/12942100.cw/index.htmlAnswer following questions (not the ones from the website):1/ Draw the diagram2/ Determine the expected completion time t and variance for each activity3/ USING m (most probable time ) AND NOT t (calculated expected time), determine ES, EF, LS and LF for each activity, as well as the slack time. (we started that in class)4/ Highlight the critical path on your drawing. What is the total duration of the project?5/ Using the number found in question 4 as the mean, and after having computed the total variance of the project, what is the probability that the project will be completed in 40 days or less?
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