Question
In: Statistics and Probability
The following table shows the Brinell hardness numbers of 20 individual steel fasteners. The testing process...
- The following table shows the Brinell hardness numbers of 20 individual steel fasteners. The testing process dents the parts so that they cannot be used for their intended purpose. Construct the individual (X) and MR-chart based on two successive observations. Specification limits are 32 ± 7.
|
Sample |
Brinell |
Sample |
Brinell |
|
|
Hardness |
Hardness |
|||
|
1 |
36.3 |
11 |
29.4 |
|
|
2 |
28.6 |
12 |
35.2 |
|
|
3 |
32.5 |
13 |
37.7 |
|
|
4 |
38.7 |
14 |
27.5 |
|
|
5 |
35.4 |
15 |
28.4 |
|
|
6 |
27.3 |
16 |
33.6 |
|
|
7 |
37.2 |
17 |
28.5 |
|
|
8 |
36.4 |
18 |
36.2 |
|
|
9 |
38.3 |
19 |
32.7 |
|
|
10 |
30.5 |
20 |
28.3 |
Solutions
orchestra answered 1 year agoRelated Solutions
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would be better to use a diamond indenter so that all types of
metal can be tested. Because of differences between the two types
of indenters, it is suspected that the two methods will produce
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large enough so that two indentions can be made. Therefore, the
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indenters to penetrate metal that is being tested. However, the
manufacturer thinks it would be better to use a diamond indenter so
that all types of metal can be tested. Because of differences
between the two types of indenters, it is suspected that the two
methods will produce different hardness readings. The metal
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be made. Therefore, the manufacturer uses both...
The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is being tested....
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indenters to penetrate metal that is being tested. However, the
manufacturer thinks it would be better to use a diamond indenter so
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between the two types of indenters, it is suspected that the two
methods will produce different hardness readings. The metal
specimens to be tested are large enough so that two indentions can
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between the two types of indenters, it is suspected that the two
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