• • S6.9 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

Is the process still in control? Explain why or why not.

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NET WEIGHT SAMPLE LOAF #1 LOAF #2 LOAF #3 LOAF #4 1 6.3 6.0 5.9 5.9 234 6.0 6.0 6.3 5.9 6.3 4.8 5.6 5.2 6.2 6.0 6.2 5.9 5 6.5 6.6 6.5 6.9