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 threeradial tires, were chosen from different shifts over several days of operation, with the following results. Tread wear measurements are in hundredths of an inch.SampleTread Wear13142282618353253034417252138293541423672117298.3226289.4134331029173011263140122319251317243214433517151825291630423117283632184029311918292820223426 Compute the upper and lower control limits for the R chart. (Round your answers to two decimal places.)UCL =LCL =Construct the R chart.353535+UCL30303025252020UCLUCL151515101010LCL5-55LCLLCL+4 68 10 12 14 16 18 204 6 8 10 12 14 16 18 202 46 8 10 12 14 16 18 20Sample NumberSample NumberSample Number353025UCL201510LCL+248 10 12 14 16 18 20Sample NumberiAssuming 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.Sample RangeSample RangeSample RangeSample Range

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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 Tread Wear 1 31 42 28 | 26 18 35 | 25 30 34 | 17 25 21 3 4 5 38 29 35 | 41 42 36 | 21 17 29 | 32 26 28 6 8 9 41 34 33 10 29 17 30 11 26 31 40 12 23 19 25 13 17 24 32 14 43 35 17 15 18 25 | 29 16 30 42 31 17 28 36 32 18 40 29 31 19 18 29 28 20 22 34 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 Tread Wear 1 31 42 28 | 26 18 35 | 25 30 34 | 17 25 21 3 4 5 38 29 35 | 41 42 36 | 21 17 29 | 32 26 28 6 8 9 41 34 33 10 29 17 30 11 26 31 40 12 23 19 25 13 17 24 32 14 43 35 17 15 18 25 | 29 16 30 42 31 17 28 36 32 18 40 29 31 19 18 29 28 20 22 34 26

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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
Tread Wear
1
31
42
28
26
18
35
3
25
30
34
4
17
25
21
38
29
35
41
42
36
7
21
17
29
8.
32
26
28
9.
41
34
33
10
29
17
30
11
26
31
40
12
23
19
25
13
17
24
32
14
43
35
17
15
18
25
29
16
30
42
31
17
28
36
32
18
40
29
31
19
18
29
28
20
22
34
26

Compute the upper and lower control limits for the R chart. (Round your answers to two decimal places.)
UCL =
LCL =
Construct the R chart.
35
35
35+
UCL
30
30
30
25
25
20
20
UCL
UCL
15
15
15
10
10
10
LCL
5-
5
5
LCL
LCL
+
4 6
8 10 12 14 16 18 20
4 6 8 10 12 14 16 18 20
2 4
6 8 10 12 14 16 18 20
Sample Number
Sample Number
Sample Number
35
30
25
UCL
20
15
10
LCL
+
2
4
8 10 12 14 16 18 20
Sample Number
i
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.
Sample Range
Sample Range
Sample Range
Sample Range

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