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Construct a three-sigma -chart and r-chart

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Reference no: EM131007052

The following table contains the measurements of the key length dimension from a fuel injector. These samples of size five were taken at one-hour intervals.

SampleNumber  Observations  
1 2 3 4 5
1 0.486 0.499 0.493 0.511 0.481
2 0.499 0.506 0.516 0.494 0.529
3 0.496 0.5 0.515 0.488 0.521
4 0.495 0.506 0.483 0.487 0.489
5 0.472 0.502 0.526 0.469 0.481
6 0.473 0.495 0.507 0.493 0.506
7 0.495 0.512 0.49 0.471 0.504
8 0.525 0.501 0.498 0.474 0.485
9 0.497 0.501 0.517 0.506 0.516
10 0.495 0.505 0.516 0.511 0.497
11 0.495 0.482 0.468 0.492 0.492
12 0.483 0.459 0.526 0.506 0.522
13 0.521 0.512 0.493 0.525 0.51
14 0.487 0.521 0.507 0.501 0.5
15 0.493 0.516 0.499 0.511 0.513
16 0.473 0.506 0.479 0.48 0.523
17 0.477 0.485 0.513 0.484 0.496
18 0.515 0.493 0.493 0.485 0.475
19 0.511 0.536 0.486 0.497 0.491
20 0.509 0.49 0.47 0.504 0.512

Construct a three-sigma -chart and R-chart for the length of the fuel injector. What can you say about this process?

Reference no: EM131007052

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