Question: please do number 3 and 4 3) [2 points] (This Question is related to Supplement 6 section Statistical Process Control (SPC)) The width of a

please do number 3 and 4

3) [2 points] (This Question is related to Supplement 6 section Statistical Process Control (SPC)) The width of a bronze bar is intended to be one-eighth of an inch (0.125 inches). Inspection samples contain five bars each. The average range of these samples is 0.01 inches. What are the upper and lower control limits for the x-bar and R-chart for this process, using 3-sigma limits? 4) [2 points] (This Question is related to Chapter 12 section Inventory Models for Independent Demand) Montegut Manufacturing produces a product for which the annual demand is 10,000 units. Production averages 80 units per day, while demand is 60 units per day. Holding costs are $5.00 per unit per year, and setup cost is $200.00. (a) If the firm wishes to produce this product in economic batches, what size batch should be used? (b) What is the maximum inventory level? (c) How many order cycles are there per year? (d) What are the total annual setup and holding costs

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