***NOT INTERESTED IN PRIVATE TUTORS*** Only willing to work with Chegg members a
ID: 404076 • Letter: #
Question
***NOT INTERESTED IN PRIVATE TUTORS*** Only willing to work with Chegg members and deem points credit to those who can help through Chegg only.***(Please show work - No longer rating or offering points unless work can be proven and correct.) Tired of paying for additional chegg points and receiving wrong answers and folks are just guessing so that can get rated and rewarded points.** TIMES (days) Activity Start Node Finish Node OPTIMISTIC to MOST LIKELY tm PESSIMISTIC tp A 1 2 20 26 38 B 1 3 23 29 47 C 2 5 12 24 36 D 3 4 29 41 53 E 4 5 12 33 54 TIMES (days) Activity Start Node Finish Node OPTIMISTIC to MOST LIKELY tm PESSIMISTIC tp A 1 2 20 26 38 B 1 3 23 29 47 C 2 5 12 24 36 D 3 4 29 41 53 E 4 5 12 33 54 Given the Activity on Arrow Diagram and the data found in the table above, calculate each of the following values: Activity A.........te = 27 Standard Deviation = 3 Activity B.........te = Standard Deviation = Activity C.........te = Standard Deviation = Activity D.........te = Standard Deviation = Activity E.........te = Standard Deviation = 7 Path 1 - 2 - 5 Mean Time = Standard Deviation =5 Path 1 - 3 - 4 - 5 Mean Time = Standard Deviation =
Explanation / Answer
PATH 1-2-5
MEAN TIME = 27+24 = 51
STD DEV = SQRT(9+16)
=5
PATH 1-3-4-5
MEAN TIME = 31+41+33 = 105
STD DEV = SQRT(16+16+49)
=9
TIMES (days) Activity Start Node Finish Node OPTIMISTIC MOST LIKELY PESSIMISTIC (to+4tm+tp)/6 [(tp-to)/6] to tm tp te std dev A 1 2 20 26 38 27 3 B 1 3 23 29 47 31 4 C 2 5 12 24 36 24 4 D 3 4 29 41 53 41 4 E 4 5 12 33 54 33 7Related Questions
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