11-18 (Part Level Submission) Shields Manufacturing produces containers for nurseries and landscaping businesses. The company competes based on its low-cost, high-quality products. As the companys expenses have risen, management has become concerned with the need to streamline various processes in order to reduce costs without reducing quality. The following table shows the time needed to produce a batch of 1-inch plant flats: Activity Time to Complete Materials moved to production floor 30 minutes Production in station 1 36 minutes Materials moved to station 2 3 minutes Wait to begin at station 2 11 minutes Production in station 2 45 minutes Inspection 6 minutes Materials moved to finished goods inventory 6 minutes What is the manufacturing cycle time (throughput time) to produce a batch of 1-inch plant flats and prepare it for sale? How much of the process time is value-added