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Draw PERT network for the following table and calculate (i) Expected time and variance for each...

Question:

Draw PERT network for the following table and calculate:

(i) Expected time and variance for each activity.

(ii) Probability f completing the project in 32 days.

(iii) Total project duration.

(iv) Critical path.

Activity	Estimated time (days)
Activity	To	Tm	Tp
1-2	2	5	8
1-3	1	4	7
2-3	0	0	0
2-4	2	4	6
2-6	5	7	12
3-4	3	5	10
3-5	3	6	9
4-5	4	6	10
4-6	2	5	8
5-6	2	4	6

Pert Network:

The Pert network is used to analyze the duration of any project. Its calculation is based on three-time estimations. The Pert method gives the variance and estimation time between the two activity points for a project.

Answer and Explanation:

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Given data

The project scheduled time is: {eq}{T_s} = 32\;{\rm{days}} {/eq}

(i)

The expected time for the activity 1-2 is as follows,

{eq}\beg...

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PERT Analysis & Project Completion

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Chapter 14 / Lesson 7

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