Question $1(23$ pts$)$: Following is the flow diagram of a process and activity times are given in

parenthesis in days.

$1$

a$)(5$ pts$)$ What is the minimum number of days to complete this process?

b$)(10$ pts$)$ Find earliest start time $($EST$),$ earliest finish time $($EFT$),$ latest start time $($LST$),$ latest finish

time $($LFT$),$ and activity slack for all activities of the process. $($Show your work and fill the table below$)$

c$)(4$ pts$)$ A sample of $70$ products produced with this process are selected at random and their flow

times are recorded. The average of these individual flow times is $200$ days. What is flow time efficiency

for this process?

d$)(4)$ Due to an unexpected supplier problem, activity E$\text{'}$s activity time is now updated as $25$ days

$($previously $15$ days$).$ Will this delay affect the process completion time?