Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Obs 1 31 26 25 17 38 41 21 32 41 29 26 23 17 43 18 30 28 40 18

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Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Obs 1 31 26 25 17 38 41 21 32 41 29 26 23 17 43 18 30 28 40 18 1 (44.67 KiB) Viewed 12 times

Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Obs 1 31 26 25 17 38 41 21 32 41 29 26 23 17 43 18 30 28 40 18 2 (33.88 KiB) Viewed 12 times

Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Obs 1 31 26 25 17 38 41 21 32 41 29 26 23 17 43 18 30 28 40 18 3 (34.51 KiB) Viewed 12 times

Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Obs 1 31 26 25 17 38 41 21 32 41 29 26 23 17 43 18 30 28 40 18 4 (36.51 KiB) Viewed 12 times

Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Obs 1 31 26 25 17 38 41 21 32 41 29 26 23 17 43 18 30 28 40 18 22 Obs 2 42 18 30 25 29 42 17 26 34 17 31 19 24 35 25 42 36 29 29 34 Obs 3 28 35 34 21 35 36 29 28 33 30 40 25 32 17 29 31 32 31 28 26
The Goodman Tire and Rubber Company periodically tests its tires for tread wear under simulated road conditions. To study and control the manufacturing process, 20 samples, each containing three radial tires, were chosen from different shifts over several days of operation, with the following results. Tread wear measurements are in hundredths of an inch. Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18. 19 20 Tread Wear 31 42 26 18. 35 25 30 34 28 17 25 21 38 29 35 41 42 36 21 17 29 32 26 28 41 34 33 29 17 30 26 31 40 23 19 25 17 24 32 43 35 17 198 25 29 30 42 31 28 36 32 40 29 31 2223 18 29 28 34 26
Assuming that these data were collected when the manufacturing process was believed to be operating in control, develop the R chart. Compute the upper and lower control limits for the R chart. (Round your answers to two decimal places.) UCL => LCL = Construct the R chart. O Sample Range 283852SO Sample Range 30 20 15- MA Mate 10- 0+ 35 30- 25 20- 15 10 5 0 UCL 24 LCL 24 6 8 10 12 14 16 18 20 Sample Number UCL LCL 6 8 10 12 14 16 18 20 Sample Number O Sample Range Sample Range 35 30 25 20 15- 10- 5 0 35 283829 So 30- 25 20 15 ww 10- 5 0- 2 4 2 4 UCL hayre LCL 6 8 10 12 14 16 18 201 Sample Number UCL LCL 6 8 10 12 14 16 18 20 Sample Number
Assuming that these data were collected when the manufacturing process was believed to be operating in control, develop the x chart. Compute the upper and lower control limits for the x chart. (Round your answers to two decimal places.) UCL = LCL = Construct the x chart. 50+ 45 40 35 30- 25 20- 15- O Sample Mean X Sample Mean X 50 45 40 15- 24 2 4 6 UCL 6 8 10 12 14 16 18 20 Sample Number LCL Sample Number UCL LCL 8 10 12 14 16 18 20 Sample Mean x Sample Mean x 50 45 40 35 20- 50 45 40- 35 30 25 20 15- AM UCL 24 6 8 10 12 14 16 18 20. Sample Number 24 LCL UCL LCL 6 8 10 12 14 16 18 20 Sample Number.