Question: Using statistical process control, the UCL and LCL for an x-bar chart are 25.6 and 15.9 respectively. The central line is 20. The results of

Using statistical process control, the UCL and LCL for an x-bar chart are 25.6 and 15.9 respectively. The central line is 20. The results of the next six sample means (i.e., averages) are 18.2, 23.3, 17.9, 21.5, 24.5, and 16.6. Based on just this information, what should you do? Group of answer choices Explore the root causes for the second, fourth, and fifth samples, the averages for which are above the center line. Nothing; the process is in control. Explore the root causes for the sample 5 average value. Explore the root causes for all the samples because their averages are both above and below the center line

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