Diagnostics using Variability Analysis

Situation: Two machines in series; machine $2$ is the bottleneck.

$$ Machine $1$: $0=19$ mins, $$

$2=1$

MTBF $=48,=8$

$$ Machine $2$: $0=19$ mins, $0$

$2=0\mathrm{.}25$

MTBF $=3\mathrm{.}3$ hr$,$ MTTR $=10$ min

$$ Space at machine $2$ for $20$ jobs of WIP.

$$ Desired throughput $2\mathrm{.}4$ jobs$/$hr$,$ not being met.

a$)$ Set up VUT spreadsheet

b$)$ Use a single solution to improve the performance or fix the problem.