Thirty samples of size 3 available in the worksheet C16P4
Thirty samples of size 3, available in the worksheet C16P4 in the OM5 Data Workbook were taken from a machining process over a 15-hour period. Construct control charts using the Excel template x-Bar & R-Chart. Verify the Excel calculations of the control limits by hand using the formulas in the chapter. Does the process appear to be in statistical control? Why or why not?
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