4.11 Given the following product tree, complete the MRP records for parts X, Y, and Z. Note that parts X and Y have specified order quantities. Y(3) Z(1) W(1) X Z(2) Part X Week 1 2 3 4 5 15 Scheduled Receipts 555 5 15 10 15 20 10 Gross Requirements Lead Time: 1 week Projected Available Net Requirements Planned Order Receipt Planned Order Release Part Y Gross Requirements Scheduled Receipts Lead Time: 2 weeks Projected Available 30 Lot Size: 50 Net Requirements Planned Order Receipt Planned Order Release Part J Gross Requirements Scheduled Receipts Lead Time: 1 week Projected Available Net Requirements Lot Size: lot-for-lot Planned Order Receipt Part K Planned Order Release Gross Requirements Scheduled Receipts Lead Time: 1 week Projected Available Net Requirements Lot Size: 400 Planned Order Receipt 50 90 90