Consider the following summary interim cost reports of a project, say in week $10.$ Assume that A$,$ B$,$ C and D are the only work packages in the project.

$($Hint: One of the columns gives you PV directly. There is no need to separately calculate it$.)$

a$)$ Calculate the EV$,$ CV and SV for each activity. What is your assessment of the progress of each activity? $(5$ Points$)$

b$)$ Calculate the EV$,$ CV$,$ SV$,$ CPI and SPI for the project, and the critical ratio $($CR$).$ What is your assessment of the entire project so far based on these calculations? $(5$ Points$)$

c$)$ There are several formulae available for calculation of the Estimated $($remaining cost$)$ to completion $($ETC$).$ Once you have ETC, you can calculate

Projected $($total cost$)$ estimated at completion $($EAC$)$ as ETC $+$ AC

Consider the following two versions for calculating ETC.

Method I: ETC $=($Budgeted cost of all remaining work$)/$ CPI

i$.$e$.,$ ETC $=($BAC $$ EV$)/$ CPI $,$ where BAC is Budget at completion.

EAC $=$ ETC $+$ AC

Method II:

ETC $=$ Budgeted Cost for all remaining work

EAC $=$ ETC $+$ AC

Calculate the Projected $($total cost$)$ estimated at completion $($EAC$)$ for the project using the two methods. Do the EACs under the two methods differ? Why or Why not? $(5$ Points$)$