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Refer to Table 86.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results: x R Hour x R Hour X R Hour 1 7 8 2 3 4 3.35 3.20 3.22 3.29 2.97 2.86 0.71 1.18 1.43 1.31 1.22 0.42 3.OS' 2.55 2.92 2.95 2.83 2.97 0.48 1.13 0.71 1.33 1.17 0.45 Hour 13 14 15 18 17 18 x R 3.01" 0.90 2.93 1.36 3.12 1.06 2.74 0.46 2.76 1.38 2.74 1.29 19 20 21 22 23 24 3.31 2.99 2.65 3.16 2 94 2.74 1.61' 1.14 1.08 0.41 1.53 1.02 5 6 10 11 12 Based on the sampling done, the control limits for 3-sigmax chart are (round all intermediate calculations to three decimal places before proceeding with further calculations): Upper Control Limit (UCL) - inches (round your response to three decimal places).
Based on the sampling done, the control limits for 3-sigma x chart are (round all intermediate calculations to three decimal places before proceeding with further calculations): Upper Control Limit (UCL) - inches (round your response to three decimal places). Lower Control Limit (LCL:) - inches (round your response to three decimal places). Based on the x-chart, the wire cutting process has been The control limits for the 3-sigma R-chart are (round all intern ecimal places before proceeding with further calculations): IN CONTROL Upper Control Limit (UCLR) - inches (round your res 3). OUT OF CONTROL Lower Control Limit (LCLR) - inches (round your response to three decimal places). Based on the R-chart, the wire cutting process has been
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