Answer :
a. To calculate the number of days of raw material inventory, we need to consider the average demand and the batch size.
The average demand per week is 2,700 sheets, and the batch size is 1,000 sheets. Since the plant operates 5 days per week, the plant holds (2,700/5) / 1,000 = 0.54 days of raw material inventory.
b. The work in process inventory between Press and Pierce & Form consists of the batch size of 1,000 sheets. Since the batch size is the same as the work in process inventory, the inventory held between Press and Pierce & Form is 1 day
c. The work in process inventory between Pierce & Form and Finish Grind is given as 300 sheets for "L" and 1,550 sheets for "S" before Finish Grind. After Finish Grind, the inventory is 600 sheets for "L" and 1,300 sheets for "S". Therefore, the inventory held between Pierce & Form and Finish Grind is (600+1,300) - (300+1,550) = 50 sheets.
d. The work in process inventory between Finish Grind and Shipping is not explicitly provided in the given information. Therefore, we cannot determine the number of days of work in process inventory between these two steps.
e. The new value stream's production lead time is calculated by adding the days of raw material inventory, the days of work in process inventory, and the days of finished goods inventory. Since the finished goods inventory is not provided, we cannot determine the production lead time.
f. The processing time for the new value stream is the sum of the cycle times for all process steps: 6 seconds + 27 seconds + 40 seconds = 73 seconds.
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