Part 1.) The following project is at the end of its sixth week. Find the cost and schedule variances. Also, find the CPI

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Part 1.)
The following project is at the end of its sixth week. Find the
cost and schedule variances. Also, find the CPI and SPI. Then find
the critical ratio of the project using earned value calculations.
Finally, calculate the ETC and EAC for the project. Comment on the
project status.
Activity
Duration
Predecessor
Budget ($)
Actual Cost ($)
% Complete
A
2
None
300
400
100
B
3
None
200
180
100
C
2
A
250
300
100
D
5
A
600
400
20
E
4
B, C
400
200
20
Part 2.)
Resolve part 1 above using the 50-50 rule for planned value and
earned value. Comment on the project status.
Hint: The only thing that changes is the
way earned value is calculated. Of course, everything that is
calculated based on EV then also changes. Using the 50-50 rule,
every activity that has finished continues to receive its full
value while any activity that has started, but has not yet
finished, receives 50 percent of its value.