$12.$ Consider a production line with only one machine that satisfies $(20$ points$).$ Machine always works, can finish one part every $2$ hours A new part is sent from Raw Material Inventory $($RMI$)$ once a part is finished and sent to Finished Good Inventory $($FGI$),$ see below figure. a$.$ What is throughput TH$?$ Work$-$in$-$process WIP? Manufacturing lead time $($MLT$)?$ b$.$ If there is one part initially in the buffer as shown in the figure below, what are TH$,$ WIP and MLT$?$ How about if there are $3$ parts initially in the buffer?Consider a production line with only one machine that satisfies $(20$ points$).$

Machine always works, can finish one part every $2$ hours

A new part is sent from Raw Material Inventory $($RMI$)$ once a part is finished and sent to

Finished Good Inventory $($FGI$),$ see below figure.

a$.$ What is throughput TH$?$ Work$-$in$-$process WIP? Manufacturing lead time $($MLT$)?$

b$.$ If there is one part initially in the buffer as shown in the figure below, what are TH$,$ WIP

and MLT$?$ How about if there are $3$ parts initially in the buffer?