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

Refer to Table 56.1 - Factors for Computing

Refer to Table 56.1 - Factors for Computing Control Chart Limits (3 sigmafor 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 X R 13 1 2 3 4 5 6 3.15" 3.00 3.32 3.49 3.17 2.76 R 0.76" 1.18 1,43 1.21 1.22 0.37 7 8 9 10 11 12 2.95' 0.53" 2.55 1.13 3.12 0.78 2.95 1.28 2.83 1.17 2.97 0.35 14 15 16 17 18 3.11" 0.85' 2.93 2.93 1.31 3.02 1.11 2.74 0.50 2.96 1.38 2.84 1.34 19 20 21 22 23 24 3.31" 2.79 2.55 3.18 3.04 2.74 1.61" 1.14 1.03 0.41 1.53 1.02 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 cakulations): Upper Control Limit (UCL ) = 3.726 inches (round your response to three decimal places). Lower Control Limit (LCL;) = 2.230 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) - inches (round your response to three decimal places). Lower Control Limit (UCL)

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