QUESTION $5$

$5\mathrm{.}1$ The table below gives information for operations A and $B$ which are required to produce Part $x$ on a lathe machine. The company operates $18$ hours per day for five days a week with each split in to two $9$ hour shifts. The milling machine requires a $38$ minute tool change after every $220$ processed parts. There are $40$ minutes and $15$ minutes of mandatory lunch and tea breaks respectively per shift.

$\backslash$table$[[$Operation$,$Std Time,Efficiency,Reliability,Defect Rate$],[$A$,7$min,$95\%,80\%,2\%$