Using the calculated standard times from the previous time study data problem, find the optimal number of machines that should be assigned to an operator. Use the elemental standard times that you calculated (which were in minutes) to determine a value for L & W for this calculation. Assume an automatic machine cycle time (M) of 3.0 minutes. The operator is paid $12.00/h and the machines cost $42/hr to run.

Determine the value for "N" as well as the unit cost per part for the two assignment alternatives.

You will not enter your answers in this section, but in the questions that follow.

\begin{tabular}{|c|c|c|c|c|} \hline Element \& Description & 1 & 2 & 3 & 4 \\ \cline { 2 - 5 } & Remove Machined Part & Adjust for next cycle & Load wext part, start auto cycle & Inspect Machined Part \\ \hline Cycle & NT & NT & NT & NT \\ \cline { 2 - 5 } 1 & 0.32 & 1.18 & 0.23 & 0.96 \\ \hline 2 & 0.46 & 1.08 & 0.30 & 1.00 \\ \hline 3 & 0.38 & 0.88 & 0.27 & 0.89 \\ \hline 4 & 0.34 & 1.00 & 0.30 & 0.87 \\ \hline 5 & 0.36 & 1.19 & 0.25 & 0.59 \\ \hline 6 & 0.32 & 1.16 & 0.25 & 0.97 \\ \hline 7 & 0.32 & 0.96 & 0.30 & 0.81 \\ \hline 8 & 0.40 & 1.16 & 0.27 & 0.70 \\ \hline 9 & 0.36 & 1.04 & 0.33 & 0.97 \\ \hline 10 & 0.36 & 1.29 & 0.30 & 0.76 \\ \hline Summary & & & & \\ \hline Total NT & 3.62 & 10.94 & 2.80 & 8.52 \\ \cline { 2 - 5 } & 10.00 & 10.00 & 10.00 & 10.00 \\ \hline Number of Cycles & 0.36 & 1.09 & 0.28 & 0.85 \\ \hline Average NT & 10.00 & 12.00 & 12.00 & 12.00 \\ \cline { 2 - 5 } \% Allowance & 1.23 & 0.31 & 0.95 \\ \cline { 2 - 5 } & 0.40 & 1.36 & \\ \hline \end{tabular} Enter total expected cost (TEC) per part for N rounded down (the lower machine count of the 2 alternatives)