Problem 1: Use the work breakdown structure (WBS) and activity duration data to do the following:

Problem 1: Use the work breakdown structure (WBS) and activity duration data to do the following:

• On a separate sheet, create an activity on node (AON) diagram for this project. Draw it neatly. Identify the critical path.
• Calculate the Expected Time (TE) for each activity. All times are in weeks. Round off your answers for TE to two decimal places.
• Using the TE time, solve for the early start, early finish, late start, late finish, and slack time for each activity. Show your answers on the diagram.
• Calculate the weekly crash costs.
• Use the normal probability density function to estimate the probability that the project will be completed within 1 week of its scheduled completion time and to estimate a 90% Confidence interval for the project completion time.

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Activity	Predecessor	Optimistic Time	Most Likely Time	Pessimistic Time	TE	S	Available Crash Weeks	Crash Cost(Additional $ Above Activity PV)	Crash Cost Per Week
A	—	1	2	4			0	NA
B	A	3	5	8			2	$30,000
C	B	4	7	12			0	NA
D	C	2	3	5			0	NA
E	B	6	8	12			2	$25,000
F	E	2	3	5			0	NA
G	E	8	9	12			3	$20,000
H	D, F, G	1	2	3			0	NA

Requirements: Original work