1. Sam's Beef Jerky Co. sells their beef jerky in packages of 12 ounces, with a standard deviation of 0.5 ounces. They want to start using SPC and want you, their quality manager, to set up an x-bar-chart for the beef jerky production line. They expect to take samples of 25 bags each. What are the upper and lower control limits for this chart? (it is customary to use z=3)