Question: 2. The sample standard deviation is? 3. The UCL for the control chart constructed using two sigma is? 4. The LCL for the control chart

2. The sample standard deviation is?
3. The UCL for the control chart constructed using two sigma is?
4. The LCL for the control chart constructed using two sigma is?
Consider a production process that produces batteries. A quality engineer has taken 20 samples each containing 100 batteries. The total number of defective batteries observed over the 20 samples is 200 . The centerline for the control chart constructed using z equal to two is
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