The following table gives the readings of electrical current in amps passing through a safety circuit...

 

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The following table gives the readings of electrical current in amps passing through a safety circuit of a temperature valve in a control system. 8 cables are measured 5 times each. No. of Samples 1 2 3 4 5 b) d) a) 6 7 8 S1 15.62 16.37 16.49 14.89 15.70 15.39 15.62 16.37 S2 15.61 15.39 16.00 16.30 16.04 16.37 15.61 15.39 S3 16.49 14.89 16.04 14.28 15.59 15.88 16.49 14.89 S4 15.65 14.90 14.36 18.49 15.67 14.89 15.65 14.90 S5 15.38 15.60 15.38 15.99 16.29 16.03 16.36 15.60 Grand Mean Mean Range Replace the "??" in the above table with your calculated values. Determine the sample size, n and subgroup, k. Determine the values of A2, D3 and D4 Determine the control limits for the R chart and Xbar chart. Sample Mean ?? ?? ?? ?? ?? ?? ?? 333 ?? ?? Range ?? ?? ?? ?? ?? ?? 3 33 Is there any plot outside the R chart or Xbar chart? If yes, describe your follow up action. (20 marks) The following table gives the readings of electrical current in amps passing through a safety circuit of a temperature valve in a control system. 8 cables are measured 5 times each. No. of Samples 1 2 3 4 5 b) d) a) 6 7 8 S1 15.62 16.37 16.49 14.89 15.70 15.39 15.62 16.37 S2 15.61 15.39 16.00 16.30 16.04 16.37 15.61 15.39 S3 16.49 14.89 16.04 14.28 15.59 15.88 16.49 14.89 S4 15.65 14.90 14.36 18.49 15.67 14.89 15.65 14.90 S5 15.38 15.60 15.38 15.99 16.29 16.03 16.36 15.60 Grand Mean Mean Range Replace the "??" in the above table with your calculated values. Determine the sample size, n and subgroup, k. Determine the values of A2, D3 and D4 Determine the control limits for the R chart and Xbar chart. Sample Mean ?? ?? ?? ?? ?? ?? ?? 333 ?? ?? Range ?? ?? ?? ?? ?? ?? 3 33 Is there any plot outside the R chart or Xbar chart? If yes, describe your follow up action. (20 marks)