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File Edit View History Bookmarks People Window Help 70 8- 67% S Tue Sep 11 1:50 PM Shi Do Homework - Jinchun Shi Secure https://www.mathxl.com Student PlayerHomework aspx?nomeworkld-4 4660241|questionid 28tused in elcid-5131005at in win Operations Management-4231-MSOM 3101-007, TR 11:00 am-1 Homework: Ch3 Project Management & Problem 3.23 Jinchun Shi9/11/18 1:50 PM Save s Score: 0.4 of 1 pt 120f 17 (1 7 complete) HW Score: 93.16%, 15.84 of 17 pts Question Help Using PERT, Adam Munson was able to determine that the expected project completion Sime for the construction of a pleasure yacht is 21 months, and the projech variance is 9. a) The probabiliy that the project will be completed in 12 months 0.0000 (round your response to four decimal places) b) The probability that the project will be completed in 20 months 0.3695 (round your response to four decimal places) c) The probability that the project will be completed in 24 months (round your response to four decimal places) Enter your answer in the answer box and then click Check Answer. Check Answer Clear All remaining Copyright 2018 Pearson Educatiorn

Explanation / Answer

z= x-mu /sigma

Where

x= days in question

mu = Expected duration

Sigma = Standard deviation of the process = (Variance)1/2

z = 24-21/3 =1

which corresponds to 84.13% chances of completion within this time limit

probability is 0.8413

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