Question

There is an 81 percent chance the project below can be completed in x weeks or less. MOST ACTIVITY OPTIMISTIC MOST MOST LIKELY PESSIMISTIC un 8 mo Uw What is x? (Do not round intermediate calculations. Round your answer to the nearest whole number.)

incorrect answer :17

Answer 1

Activity Optimistic Most likely Pessimistic Expected time =(B2+4*C2+D2)/6 =(B3+4*C3+D3)/6 =(B4+4*C4+D4)/6 =(B5+4*C5+D5)/6 =(B6+4*C6+D6)/6 Variance =((D2-B2)/6)^2 =((D3-B3)/6)^2 =((D4-B4)/6)^2 = (D5-B5)/6)^2 = (D6-B6)/6)^2 002

А в 1 Activity Optimistic Most likely Pessimistic Expected time Variance 2А 17.50 2.250 з в з 5 3.00 0.444 4 5.00 0.111 9.00 4.000 б 5 Т. 6.50 1.361 4 5

+510- 5 10- 519-5 19- 5 19 7 19-5 END 1 11-5 ( 6513 B 19-5 The critical paths A-B-D - Project completion time = p. 5 weeke 2-oalue for PC+EX) = X- Top =) P(+5X) is percent chance that project is completed in y weeks or less Top + project completion time = 19-5 weeks Tup= fup; Vopt variance of critical path

Tup= fucp Vop+ variance of critical path VA VB +VD 2-25+ 0-444+ 4 6-694 14 = 2-584 Cop= 16.694 = 2.584 7-value for el percent chance = 0-€76 0-878 = X-19-5 2.687 X = 21- 77 ~ 22 weeks , Y= 1227 X 22