The thickness of a printed circuit board is an important quality parameter. Data
ID: 3058089 • Letter: T
Question
The thickness of a printed circuit board is an important quality parameter. Data on board thickness (in inches) are given in Task 2 for 25 samples of three boards each.(a) Set up x¯ bar and s control charts. Is the process in statistical control?
(b) Estimate the process standard deviation.
(c) If the specifications are at 0.0630 in. ± 0.0015 in., what is the value of the PCR LaTeX: C_pCp?
Copy ..Format Painter B 1 uHE.la Paste Font Alignment G14 1 Sample Number Observation 1 Observation 2 Observation 3 0.0636 0.0631 0.0631 0.063 0.0628 0.0629 0.0639 0.064 0,0622 0.0633 0.0631 0.063 0.0634 0.0629 0.063 0.0628 0.0634 0.0619 0.0613 0.063 -0.0628-0.0627 0.0622 0.0626 0.0631 0.063 0.063 0.0631 0.064 0.0644 0.0627 0.0623 0.0623 0.0631 0.0535 0.0633 0.0633 0.0638 0.063 0.0631 0.0632 0.063 0.0631 0.0626 0.0629 0.0629 0.0616 0.0619 0.063 0,0635 0.063 0.0645 0.0619 0.0631 .0616 0.0631 0.0635 0.0625 0,0628 0.0615 0063 0.0635 0.0632 0.0629 0.0629 Task 1 Task Task 3 l Task 4 Factor Table 3 O Type hore to search
Explanation / Answer
The thickness of a printed circuit board is an important quality parameter. Data on board thickness (in inches) are given in Task 2 for 25 samples of three boards each.(a) Set up x¯ bar and s control charts. Is the process in statistical control?
(b) Estimate the process standard deviation.
(c) If the specifications are at 0.0630 in. ± 0.0015 in., what is the value of the PCR LaTeX: C_pCp?
Copy ..Format Painter B 1 uHE.la Paste Font Alignment G14 1 Sample Number Observation 1 Observation 2 Observation 3 0.0636 0.0631 0.0631 0.063 0.0628 0.0629 0.0639 0.064 0,0622 0.0633 0.0631 0.063 0.0634 0.0629 0.063 0.0628 0.0634 0.0619 0.0613 0.063 -0.0628-0.0627 0.0622 0.0626 0.0631 0.063 0.063 0.0631 0.064 0.0644 0.0627 0.0623 0.0623 0.0631 0.0535 0.0633 0.0633 0.0638 0.063 0.0631 0.0632 0.063 0.0631 0.0626 0.0629 0.0629 0.0616 0.0619 0.063 0,0635 0.063 0.0645 0.0619 0.0631 .0616 0.0631 0.0635 0.0625 0,0628 0.0615 0063 0.0635 0.0632 0.0629 0.0629 Task 1 Task Task 3 l Task 4 Factor Table 3 O Type hore to search
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