6. Melnick Mines uses a special type of hardened crusher ball for preparing the ore. Purchasing the balls is managed with time-phased material planning. The following records are for two successive weeks:

a. What transactions made during week 1 would result in the record as of week 2 (assuming no scrap losses)?

b. How would this set of transactions be changed if rate-based scheduling and JIT-based shop-floor control were implemented at the vendor with lead time one day?

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Week Part: Crusher Ball 1 2 3 4 5 6 7 8 Gross requirements 25 25 25 25 25 25 25 25 Scheduled receipts 80 Projected available balance 201 -5 50 25 80 Planned order release. 80 88 55 30 85 60 80 = Q 80, SS 20, LT-3. Week Part: Crusher Ball 2 3 4 5 6 7 8 9 Gross requirements 25 25 25 25 25 25 25 25 Scheduled receipts 80 Projected available balance 70 45 20 75 50 25 80 55 30 Planned order release 80 80 Q-80, S$ 20, LT-3. -