Question

Worst Duration 10 Index Tasks Best Duration Most Likely Duration Market Research Cost Analysis Product Design Development Analysis Developing Product Model Filing Contracts Product Testing Pricing Sales/Marketing Planning Sales Force Training 12 10 13 16 18 15 10 12 12 10 a. Average duration and variance of each activity? The critical path on average is? b. c. d. e. f. The average duration of the critical path found in (b)? Variance of the duration of the critical path found in (b)? The probability of the project is being completed within 50 weeks is? The probability of the project exceeding 52 weeks is?

Predecessors below

Answer 1

Expected time (abo called Average duration)-(optimistic +4'Most sless tandard Deviation (pessimstic-Optimistic) 6 Variancesquare Using the expected time we build the fallawing satt chart (standard deviatian) We observe the critical path a5.A-C D E-F-J Therefore aj Shawn on table bl We abserve the critical path -CDEGJ c) Critical path average -sum of espectad.tma of all activities in critical path- 61 minutes d| utevarance-sum of variance of critical path activities . 9