Homework: HW-CH06s Score: 0 of 1 pt Problem 6s.9 Save 3 of 3(1 co Hw Score: 0%,

Question

Homework: HW-CH06s Score: 0 of 1 pt Problem 6s.9 Save 3 of 3(1 co Hw Score: 0%, 0 of 3 Question Help 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 thex and R-charts are: UCL. 6.98. LCL-640; UCLR 1.249, LCLR Over the past few days, they have taken five random samples of four loaves each and have found the following Net Weight Loaf # 1 6.9 6.5 6.2 6.4 6.8 Loaf # 2 6.8 6.8 6.3 6.6 6.9 #3 6.8 6.5 6.2 6.4 7.0 Loaf #4 6.7 6.8 6.3 6.5 7.1 Based on the x-chart, is one or more samples beyond the control limits?

Explanation / Answer

Sample 3 has mean beyond the control limits as its mean would be 6.25 which is below 6.4(LCLx-bar)

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