11. A product is made up of components A, B, C, and D. These components are wire
ID: 328245 • Letter: 1
Question
11. A product is made up of components A, B, C, and D. These components are wired in a series. Their reliability factors are .98, 999, .97, and .989, respectively. Compute the overall reliability for this product.
14. A product is made up of 20 components in a series. Ten of the components have a 1/10,000 chance of failure. Five have a 3/10,000 chance of failure. Four have a 4/10,000 chance of failure. One component has a 1/100 chance of failure. What is the overall reliability for this product?
18. Suppose a company makes the following product with the following numbers of defects. Construct a p chart to see if the process is in control n=100
Samples Defectives
1 67
2 28
3 45
4 32
5 30
6 48
7 32
8 24
9 25
10 27
11 28
12 29
13 65
14 66
15 69
16 70
17 26
18 13
19 45
20 46
21 47
22 48
23 28
24 29
25 75
Explanation / Answer
11)
Reliability of series = multiplication of reliability of individual components
= 0.98 *0.999 * 0.97 * 0.989
= 0.9392
14)
Reliability of system
= 10* 1/10000 * 5 * 3/10000 * 4 * 4/10000 * 1/100
= 2.4 * 10^-11
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