Multiple Choice
A table of values can be used to help calculate R-chart control limits because the constants have been determined from the sampling distribution of R so that ________.
A) D4 =
- 3sR and D3
=
+ 3sR
B) D4 =
+ 3sR and D3
=
- 3sR
C) D4 =
- sR and D3
=
+ sR
D) D =
± A2R.
Correct Answer:

Verified
Correct Answer:
Verified
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