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J K L M N o B C D E F G H 1 CHAPTER S6: Example S1 2 3 Quality Control x bar chart Enter the population standard deviation then enter 4 the data from each sample. Finally, you may 5 Number of sample: 12 change the number of standard deviations. 6 Sample size 9 Population 7 standard 1.72 8 Data Results 9 Mean 10 Sample 1 16.1 x-bar value 16 11 Sample 2 16.8 z value 3 12 Sample 3 15.5 Sigma x bar 0.57333 13 Sample 4 16.5 14 Sample 5 16.5 Upper control limit 17.72 15 Sample 6 16.4 Center line 16 16 Sample 7 15.2 Lower controllimit 14.28 17 Sample 8 16.4 18 Sample 9 16.3 19 Sample 10 14.8 20 Sample 11 14.2 Below LCL 21 Sample 12 17.3 20 22 Average 16 23 10 24 25 0 26 1 2 3 5 27 28 Graph Data LCL CL UCL 29 Sample 1 16.1 14.28 16 17.72 30 Sample 2 16.8 14.28 16 17.72 31 Sample 3 15.5 14.28 16 17.72 32 Sample 4 16.5 14.28 16 17.72 33 Sample 5 16.5 14.28 16 17.72 34 Sample 6 16.4 14.28 16 17.72 35 Sample 7 15.2 14.28 16 17.72 36 Sample 8 16.4 14.28 16 17.72 37 Sample 9 16.3 14.28 16 17.72 38 Sample 10 14.8 14.28 16 17.72 39 Sample 11 14.2 14.28 16 17.72 40 Sample 12 17.3 14.28 16 17.72 x-bar chart . Data Mean LCL -CL 4 5 7 8 9 10 11 12 UCL Sample J K L M N o B C D E F G H 1 CHAPTER S6: Example S1 2 3 Quality Control x bar chart Enter the population standard deviation then enter 4 the data from each sample. Finally, you may 5 Number of sample: 12 change the number of standard deviations. 6 Sample size 9 Population 7 standard 1.72 8 Data Results 9 Mean 10 Sample 1 16.1 x-bar value 16 11 Sample 2 16.8 z value 3 12 Sample 3 15.5 Sigma x bar 0.57333 13 Sample 4 16.5 14 Sample 5 16.5 Upper control limit 17.72 15 Sample 6 16.4 Center line 16 16 Sample 7 15.2 Lower controllimit 14.28 17 Sample 8 16.4 18 Sample 9 16.3 19 Sample 10 14.8 20 Sample 11 14.2 Below LCL 21 Sample 12 17.3 20 22 Average 16 23 10 24 25 0 26 1 2 3 5 27 28 Graph Data LCL CL UCL 29 Sample 1 16.1 14.28 16 17.72 30 Sample 2 16.8 14.28 16 17.72 31 Sample 3 15.5 14.28 16 17.72 32 Sample 4 16.5 14.28 16 17.72 33 Sample 5 16.5 14.28 16 17.72 34 Sample 6 16.4 14.28 16 17.72 35 Sample 7 15.2 14.28 16 17.72 36 Sample 8 16.4 14.28 16 17.72 37 Sample 9 16.3 14.28 16 17.72 38 Sample 10 14.8 14.28 16 17.72 39 Sample 11 14.2 14.28 16 17.72 40 Sample 12 17.3 14.28 16 17.72 x-bar chart . Data Mean LCL -CL 4 5 7 8 9 10 11 12 UCL Sample