Question

301247/mod_resource/content/B/Exam%202%20March%202020.pdf - + Fit to page Question 2) Use the table diagram below to answer the following questions? (20 Points) Time Estimates (days) Optimistic Most Likely Pessimistic Activity Start Precedes AB CD 56 D F F End a) Draw the project network? (5 Points) b) What is the expected duration and standard deviation for each activity? (5 Points) c) What is (are) the project critical path(s); duration(s); and standard deviation (s)? (5 Points) d) What's the probability that the critical path for this project will be completed within 210 days? (5 Points)

Answer 1

Hello there,

let us look into the solution directly

Note -; Standard deviation has been denoted by sigma in the table.

Empire Act Predi opt. Most Like Pessi e mention Start AB A CD 49 50 56 so B D 45 60 75 60 E 42 45 48 45 . F 31 40 49 40 3 E F 27 36 39 35 2 I End S8 70 82 start 15012) 4511) 3512] 1601 57 4013 014] SD = tp-to, enp Mean = totalt i time

the critical path is along START - A - C - E - F - END and the expected mean time or project duration is 200 days
© Criftical Path [start-A- C - DEHEND 1 Duration=200 days, 1 sproject=jérhet = 12452442452432442 = 7.6811 weeks, Oz-value=Derta-mean SD 2-valve 210-200 - 76810
please ignore the scribblings.

Z-value = 1:3018, N74/ x+ 30186 for 2-value = 1,3018, Auc of shaded & region=0.90638 Hence, probabilety of completion within 210 weeks = 0.9063.
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