Normal NoS 1) A manufacturing process is monitored using x-bar and R charts. Ten

Question

Normal NoS 1) A manufacturing process is monitored using x-bar and R charts. Ten samples of n 3 observations have been gathered with the following results. What is the value of x-bar-bar? Mean 31.82 28.41 26.54 23.88 23.67 29.82 27.74 Range 8.929 6.196 4.670 5.614 8.316 8.923 4.077 5.196 6.508 7.866 Sample 5 28.24 30.19 10 2) A manufacturing process is monitored using x bar and R charts. Ten samples of ne9 observations have been gathered with the following results. What is the value of R-bar? Mean 31.56 28.61 21.47 23.91 22.52 22.18 21.52 30.57 29.66 23.20 Range 8.352 6.298 5.693 7.003 5.819 6.142 .038 6.757 5.769 5.255 Sample 10 kindle 27

Explanation / Answer

1.)Value of X bar bar=Sum of all means/10=28.202

2.)Valu of R bar=Sum of all ranges/10=6.4126

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