DataSpan, Incorporated, implemented Lean Production and would like to redesign its performance measures accordingly. It has provided the following data sets:

Required:

$1-$a$.$ Compute the throughput time for each month.

$1-b.$ Compute the delivery cycle time for each month.

$1-$c$.$ Compute the manufacturing cycle efficiency $($MCE$)$ for each month

$2.$ Evaluate the company's performance over the last four months.

$3-$a$.$ Refer to the data for month $4.$ Assume in month $5$ the company uses Lean Production to completely eliminate the queue time, and all else remains the same as month $4$ Compute the new throughput time and MCE.

$3-$b$.$ Refer to the data for month $4$ Assume in month $6$ the company eliminates all queue time and inspection time, and all else remains the same as month $4.$ Compute the new throughput time and MCE.