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Mathematics, 10.03.2020 07:29 NetherisIsTheQueen

A manufacturing process is monitored using x-bar and R charts. Ten samples of n=4 observations have been gathered with the following results. What is the value of x-bar-bar? Sample Mean Range 1 28.34 6.48 2 22.37 6.333 3 33.71 7.666 4 26.03 8.815 5 30.92 5.849 6 24.76 6.383 7 33.05 5.189 8 24.84 7.221 9 22.75 5.634 10 21.12 6.497

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