In order to establish a control chart for the mean of a process, 20 samples each...

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In order to establish a control chart for the mean of a process, 20 samples each of size 4 are collected. We note that 222, T

Answer 1

Answer #1

SM for 7 chast Given n = 2o, d=4, Exi= 4000 , Es=soo LEL 5 X * 3 d = 14000 + 3 ( soo 2o 20 니 200 +18.75 1) = 218.75 so we can

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