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Author Question: Source: 1950 ASTM Manual on Quality Control of Materials, copyright American Society for Testing ... (Read 30 times)

K@

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Source: 1950 ASTM Manual on Quality Control of Materials, copyright American Society
for Testing Materials. Reprinted with permission.

Historically, the average diameter of the holes drilled has been 0.25 cm and the average range has been 0.1 cm. Determine the central line and upper and lower control limits for an - and an R-chart, assuming samples of size 8 will be taken. Use Table 5.1. For the R-chart, what is the value of the UCLR?
◦ Greater than 0.1000 but less than or equal to 0.1510
◦ Greater than 0.1510 but less than or equal to 0.2020
◦ Greater than 0.2020
◦ Less than or equal to 0.1000


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Marked as best answer by K@ on Apr 18, 2020

Viet Thy

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K@

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Reply 2 on: Apr 18, 2020
Gracias!


ricroger

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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