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QUESTION 7 Use the product structure tree and the lead time information (in weeks) to determine when an order for Gs should be placed in order to deliver Machine 'U' in week 10. Assume the final assembly (after all sub-assemblies arrive) requires 3 weeks to assemble. Assume there is no starting inventory for any component or end item. M(3 week) G(2 week) B(3 week) 2 weeks 3 weeks 5 weeks 6 weeks Machine 'U' N(2 week) Q(1 week) B(3 week) D(2 week)