Q$.9.($a$)$ The following tasks are to be performed on an assembly line in the sequence and times specified :

$($i$)$ Draw the schematic diagram.

$($ii$)$ What is the theoritical minimum number of stations required to meet a forecasted demand of

$400$ units per an $8-$hour day?

$($iii$)$ Use the longest task time rule and balance the line in the minimum number of stations to

produce $400$ units per day.

$($iv$)$ Evaluate the Line Efficiency and the Smoothness Index