A Project Consists of Five Activities AConstruct the PERT/CPM Network for This Problem

question 1

Essay

A project consists of five activities.Naturally the paint mixing precedes the painting activities.Also,both ceiling painting and floor sanding must be done prior to floor buffing.
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$$\begin{array} { l c c c } \text { Activity } & \begin{array} { c } \text { Optimistic } \\\text { Time (hr) }\end{array} & \begin{array} { c } \text { Most Probable } \\\text { Time (hr) }\end{array} & \begin{array} { c } \text { Pessimistic } \\\text { Time (hr) }\end{array} \\\hline \text { Floor sanding } & 3 & 4 & 5 \\\text { Floor buffing } & 1 & 2 & 3 \\\text { Paint mixing } & 0.5 & 1 & 1.5 \\\text { Wall painting } & 1 & 2 & 9 \\\text { Ceiling painting } & 1 & 5.5 & 7\end{array}$$
a.Construct the PERT/CPM network for this problem.
b.What is the expected completion time of this project?
c.What is the probability that the project can be completed within 9 hr.?

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Definitions:

Job-related Abilities

Specific skills or competencies required to perform tasks and responsibilities linked to a particular job effectively.

Proactive Personalities

Individuals who are naturally inclined to take initiative and effect change in their environment, rather than just reacting to it.

Initiative

The ability to assess and initiate things independently without needing to be prompted by others.

Effect Change

To cause a significant difference or alteration in a situation or condition.