Consider the Network Described in the Table Below A Calculate the Expected Duration of Each Activity

question 18

Essay

Consider the network described in the table below.
$\begin{array} { | c | c | c | c | c | } \hline \text { Activity } & \begin{array} { c } \text { Immediate } \\\text { Predecessor(s) }\end{array} & \text { Pessimistic } & \text { Probable } & \text { Optimistic } \\\hline \mathrm{J} & -- & 15 & 10 & 8 \\\hline \mathrm{K} & -- & 9 & 8 & 7 \\\hline \mathrm{L} & \mathrm{J} & 10 & 6 & 5 \\\hline \mathrm{M} & \mathrm{J} & 3 & 3 & 3 \\\hline \mathrm{N} & \mathrm{K}, \mathrm{M} & 9 & 5 & 1 \\\hline \mathrm{O} & \mathrm{K}, \mathrm{M} & 10 & 7 & 4 \\\hline \mathrm{P} & \mathrm{L}, \mathrm{N} & 10 & 8 & 3 \\\hline\end{array}$
a. Calculate the expected duration of each activity.
b. Calculate the expected duration and variance of the critical path.
c. Calculate the probability that the project will be completed in fewer than 30 time units.

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Definitions:

Audience

The assembled spectators or listeners at a public event, such as a play, movie, concert, or meeting.

Attention

The act of focusing cognitive resources on a particular stimulus or task.

Persuasive Messages

Communications designed to influence the attitudes, beliefs, or behaviors of the recipient, often used in marketing, advertising, and political campaigns.

Categories of Information

The organization of information into groups based on shared characteristics or themes.