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Management Decision Systems (MDS) is a consulting company that specializes in the development of decision support systems. MDS has a four-person team working on a current project with a small company to set up a system that scrapes data from a collection of websites and then automatically generates a report for management on a daily basis.

			Time (Weeks)
Activity	Description	Immediate Predecessor	Optimistic	Most Probable	Pessimistic
A	Report generation		1	8	12
B	Web scraping		5	9	11
C	Testing	A, B	1	1	1

(a)

Construct the project network. (Submit a file with a maximum size of 1 MB.)

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(b)

Based solely on the critical path, estimate the probability that the project will be complete within 11 weeks. (Round your answer to four decimal places.)

(c)

Using all paths through the project network, estimate the probability that the project will be complete within 11 weeks. (Round your answer to four decimal places.)

(d)

Should you use the estimate in (b) or (c)?

The probability estimate from (b) based on the critical path is more accurate.The probability estimate from (c) based on both paths is more accurate. The probability estimates from (b) and (c) are equal.