Question: During phase 1 analysis, the following preliminary data was collected: observations Subgroup # 1 2 3 6 3 6 3 4 1 5 2. 7

During phase 1 analysis, the following

During phase 1 analysis, the following preliminary data was collected: observations Subgroup # 1 2 3 6 3 6 3 4 1 5 2. 7 According to the data, which of the following preliminary calculations is correct? O a The LCL for the second subgroup is 2.578 D. The UCL for the third subgroup is 6 615 O c The most appropriate estimate for the mean is 4.11 Od All the calculations are correct

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