Question

The Take-Charge Company produces batteries. From time to time a random sample of six batteries is selected from the output an
0 12 345678 9 10 11 12 13 14 15 16 17 18 19 20 R-Chart 0 1 2 3 4 5 6 7 8 910 11 12 13 14 15 16 17 18 19 20 R-Chart
The Take-Charge Company produces batteries. From time to time a random sample of six batteries is selected from the output and the voltage of each battery is measured, to be sure that the system is under control. Here are statistics on 16 such samples Sample Mean ļ Range 4.99 0.41 4.87 057 4.85 5.26 0.59 0.74 0.74 5.090.21 5 6 7 0.21 5.02 5.13 5.09 5.01 30.56 0.92 0.49 9 10 5.19 0.56 5.40 0.44 12 13 14 15 5.15 5.00 4.89 4.99 0.63 0.65 0.72 0.54 16 5.05 0.73 [20)Draw x-bar and R charts and show your calculations for determining the centerline of the chart, and the control limits 10jls this system under control? What should the quality control engineer do? a.
0 12 345678 9 10 11 12 13 14 15 16 17 18 19 20 R-Chart 0 1 2 3 4 5 6 7 8 910 11 12 13 14 15 16 17 18 19 20 R-Chart
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No . 0 91 0-53 0.59 0.14 6.74 6.2 4.99 1.87 1,85 5-2b 8. 5 0 5A13 S 09 S. 0 Tn 10. b 49 0 63 .65 G-子2 54 0.73 540 515 51 80 3lo ち-36 CL(5.0 CY L3 1. 5 -35 ー→ aC0.sg) OLCo.sa) LCL Lo) it CS me amscanv em CS Scanned with CamScanner

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