Question: Sample 3 4 Hour 1 2 5 R 1 23 22 21 22 22 2 17 19 42 18 00 3 12 7 9 7

Sample 3 4 Hour 1 2 5 R 1 23 22 21 22 22 2 17 19 42 18 00 3 12 7 9 7 11 4 27 42 22 22 23 un 21 20 36 18 19 6 31 34 12 26 36 a) Determine the upper and lower X and R control chart limits. b) Do the data indicate a process that is in control? Why? UCLR D.R UCL; = + AR LCL) = = -AR LCLR = DR

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