Organic Grains LLC uses statistical process control to ensure that its health-conscious, low-fat, multigrain sandwich loaves have the proper weight. Based on a previously stable and in-control process, the control limits of the x- and R-charts are UCLx = 6.56. LCLx = 5.84, UCLR = 1.141, LCLR = 0. Over the past few days, they have taken five random samples of four loaves each and have found the following:

SAMPLE NET WEIGHT LOAF #1 LOAF #2 LOAF #3 LOAF #4 1 6.3 6.0 5.9 5.9 2 6.0 6.0 6.3 5.9 3 6.3 4.8 5.6 5.2 4 6.2 6.0 6.2 5.9 5 6.5 6.6 6.5 6.9 Is the process still in control? Explain why or why not. L 0 1