Question: Show work step-by-step by hand (no Excel). 1. The manager of Champion Cooling Company has recently implemented a statistical process control method. The accompanying table

Show work step-by-step by hand (no Excel).

Show work step-by-step by hand (no Excel). 1. The

1. The manager of Champion Cooling Company has recently implemented a statistical process control method. The accompanying table shows the results of five different samples of walk-in coolers that were produced in the previous month. There are 3 units in each sample. Observations Sample 1 2 3 104 106.4 101.8 2 100.1 104.4 103.6 101.1 100.4 103 102 105.9 104.6 5 102.7 105.4 106.1 a) Assume that only these five samples are sufficient, and use the data to determine control limits for an R- and Xbar charts. b) Is this process in control? Plot the R and Xbar charts. Sample Size (n) x-bar-Charts (A2) R-Charts (D3) R-Charts (D) 1.02 2.57 0.58 2.11

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