Quration$-4$: $[308)$

$4-1)$ Reboard Fectronics, inc. is a reprocessor of electronic boards used in computers. The qualty manager is trying to determine the non$-$conformances per unit $($NPU$)$ and the throuphput vield. The quality manager has requested that SO$0$ boards be inspected and $25$ non$-$conlormances were found.

a$.$ Calculate the noncontomances per unit $($NPU$)$ and the throughput vield $($TY$).$

b$.$ If the production process concists of four steps, with step $1$ having a throughput yield of $98$ Pircent; step $2,99$ percent; step $3,95$ percent; and step $4,97$ percent, what is the rolled throughput vield $[$RTY$),$ and the proportion nonconformine?

$4-2)$ Over the last year $752$ drug doses were administered at the Goodhealth clinic Qualify is measured by the proper dosage as well as the correct drug in two instances, the incorrect size of pill was given. and in one case, the wrone drug was ghen. At what sigma level is Cocohealth's process?