Sue helms appliances wants to establish an assembly line to manufacture it's new product the micro popcorn popper. The goal is to produce $5$ poppers per hour. The tasks, task times and immediate predecessors for producing one micro popcorn popper are as follows.

Task Time$($Min$)$ immediate predecessors

A $10-$

B $12$ A

C $8$ A$,$B

D $6$ B$,$C

E $6$ C

F $6$ D$,$E

$1.$ what is theoretical minimum for smallest number of Workstations that items can achieve in this line?

$2.$ Graph the assembly line and workers to workstations $.$ Can we assign them to theoretical minimum?

$3.$ What is the efficiency of your assignment?