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CSQA · Question #73

In control charts, accepted practice uses a width of _________________________around the populations mean (?) to establish the control limits.

The correct answer is C. Plus or minus three standard deviations. See the full explanation below for the reasoning.

Question

In control charts, accepted practice uses a width of _________________________around the populations mean (?) to establish the control limits.

Options

APlus or minus one standard deviation
BPlus or minus two standard deviations
CPlus or minus three standard deviations
DPlus or minus four standard deviations
EPlus or minus five standard deviations

How the community answered

(29 responses)

A
3% (1)
B
3% (1)
C
72% (21)
D
7% (2)
E
14% (4)

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