Problem 1. Control charts for x-bar and R are maintained for an important quality characteristic. The sample size is n = 7; X-bar and R are computed for each sample. After 35 samples, we have found that 35 > X; = 7805 i=1 and 35 > Ri = 1200 i=1 (a) Set up X-bar and R charts using these data. Do the calculations by hand, and show

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Is it possible to make a X-Bar and R control chart without a data set? I'm told to solve it by hand, but am unsure of how to do that with only the summation notation

Problem 1.
Control charts for x-bar and R are maintained for an important quality characteristic. The
sample size is n = 7; X-bar and R are computed for each sample. After 35 samples, we
have found that
%3D
35
> X; = 7805
i=1
and
35
> Ri = 1200
i=1
(a) Set up X-bar and R charts using these data. Do the calculations by hand, and show
Transcribed Image Text:Problem 1. Control charts for x-bar and R are maintained for an important quality characteristic. The sample size is n = 7; X-bar and R are computed for each sample. After 35 samples, we have found that %3D 35 > X; = 7805 i=1 and 35 > Ri = 1200 i=1 (a) Set up X-bar and R charts using these data. Do the calculations by hand, and show
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