The thickness of a printed circuit board is an important quality parameter. Data on board thickness.1 answer below »

The thickness of a printed circuit board is an important quality parameter. Data on board thickness (in inches) are given in the following table for 25 samples of three boards each. a) Set up and R control charts. Is the process in statistical control? b) Estimate the process mean and standard deviation. c) What are the limits that you would expect to contain nearly all the process measurements? (Approximately 99.73%) d) If the specifications are at 0.0630 in. 0.0015 in., what is the value of the PCR Cp? e) The following table contains 5 new subgroups of thickness data. Plot this data on the control charts constructed in previous parts. Is the process in statistical control?

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