Question: Refer to Table 56.1 - Factors for Computing Control Chart Limits (3 sigma) for this problem. Sampling 4 pieces of precision-cut wire (to be used

Refer to Table 56.1 - Factors for Computing

Refer to Table 56.1 - 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: Hour Hour R Hour R Hour R 1 2 3 x 3.35" 3.10 3.32 3.49 3.07 R 0.65" 1.18 1.43 1.21 1.12 0.32 7 8 9 10 11 12 x 3.05" 2.55 3.02 2.85 2.73 2.97 0.53" 1.13 0.66 1.28 1.12 0.40 13 14 15 16 17 18 x 3.21" 2.73 3.02 2.84 2.86 2.84 0.85" 1.31 1.01 0.55 1.43 1.29 19 20 21 22 23 24 x 3.41" 2.99 2.55 3.28 3.04 2.64 1.66" 1.14 1.13 0.41 1.53 1.02 4 5 6 2.76 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:) = 3.726 inches (round your response to three decimal places). Lower Control Limit (LCL;) = 2.246 inches (round your response to three decimal places). Based on the x-chart, the wire cutting process has been IN CONTROL The control limits for the 3-sigma R-chart are (round all intermediate calculations to three decimal places before proceeding with further calculations): Upper Control Limit (UCLR) = 2.316 inches (round your response to three decimal places). Lower Control Limit (LCLR) = 0 inches (round your response to three decimal places). Based on the R-chart, the wire cutting process has been OUT OF CONTROL

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