Question: Learning Activity #5 Sample 3 4 Hour 2 5 I R 1 23 22 21 22 22 2 17 19 42 18 8 3 12

Learning Activity #5 Sample 3 4 Hour 2 5 I R 1 23
Learning Activity #5 Sample 3 4 Hour 2 5 I R 1 23 22 21 22 22 2 17 19 42 18 8 3 12 7 9 9 7 11 4 27 42 22 22 23 5 21 20 I 36 18 19 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? UCL; = 7+ A,R UCLR DIR LCL, = 2 - A R LCLR= D.R

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