Data for AON analysis problems:

A network consists of the activities in the following list. Times are given in weeks.

Activity	Preceding	Time
A	--	8
B	--	3
C	A	7
D	A, B	3
E	C	4
F	D	9

Note: draw the network diagram based on activity on node and answer test1 questions with ID AON

Data for decision tree problems:

JDI, Inc. is trying to decide whether to make or buy a part (#J-45FPT). Purchasing the part would cost $1.30 each. If they design and produce it themselves, it will result in a per unit cost of $0.82. However, the design investment would be $40,000. Further, they realize that for this type of part, there is a 25% chance that the part will need to be redesigned at an additional cost of $50,000. Regardless of whether they make or buy the part, JDI will need 80,000 of these parts. Using decision trees analysis and EMV, what should JDI do?

Note: draw the decision tree and answer test1 questions with ID Decision tree

ID Decision tree What is leaf value of the path with failure?

		$115,200
		$121,500
		$155,600
		$175,000

6 points

QUESTION 16

ID decision tree What is the expected value of the decision node?

		$115,200
		$121,800
		$145,600
		$118,100

6 points

QUESTION 17

IDF1 A forecaster trusts both most recent data points and the middle data points three times the oldest data point in a 3-point MA method (as discussed in the class). The weights that are used for the method are:

		0.143, 0.345, 0.345
		0.200, 0.400, 0.400
		0.143, 0.428, 0.428
		0.255, 0.255, 0.555