a) Given the product structure and master production schedule ( Figure below), develop a gross requirements plan for all items. b) Given the preceding product structure, master production schedule, and inventory status, develop a net materials requirements (planned order release) for all items. Hip Replacements, Inc., has a master production schedule for its newest model, as shown below, a setup cost of $50, a holding cost per week of $2, beginning inventory of 0 , and lead time of 1 week. What are the costs of using (a) EOQ and (b) POQ for this 10-week neriod? Hip Replacements, Ine., has a master production schedule for its newest model, as shown below, a setup cost of 550 , a bolding cost per week of 52, beginning inventory of 0 , and lead time of 1 week What are the costs of using (a) EOQ and (b) POQ for this 10 -week period