A company receives parts from suppliers to be used in its manufacturing departments. The quality control department must perform two operations when shipments are received: Operation A - draw a random sample, package, and deliver to testing; and Operation B - test the materials and issue a disposition report. There are currently six shipments waiting to be processed. The time estimates for processing these six shipments through quality control are given in the table below. Shipment 1 2 3 4 5 6 Operation A (hours) 1.5 1.1 1.2 0.7 1.6 1.9 Operation B (hours) 1.0 2.7 1.4 1.6 1.5 2.9 i. Use Johnson's Rule to set the sequence of processing the shipments through Quality Control [7 Marks] How much total time is required to process all the six shipments through Quality Control? Show all times on a Gantt Chart. [18 Marks]