A project network is shown below.Use a forward and a backward pass to determine the critical path,and then fill out the table below. 
Now assume that the times listed are only the expected times instead of being fixed times.Is the probability of being finished in more than 28 weeks more or less than 50%?
Definitions:
Unrealistic Assumption
A simplified or idealized condition used in economic models or theories that may not fully represent real-world complexities.
Economic Behavior
The study of the decision-making processes and actions of individuals and institutions regarding economic variables.
Microeconomics
The study of the economic behavior in particular markets, such as that for computers or unskilled labor.
Equilibrium Economics
A state in economic models where supply equals demand, leading to stable prices and quantities.
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