What constants are used in the X-bar, R-chart? | Cheap Nursing Papers

What constants are used in the X-bar, R-chart?

What constants are used in the X-bar, R-chart?

I. D4 The factor D4 is used to determine the upper control limit of a range chart

II. D3

III. A2

IV. R-bar R-bar is only variable that determines width of control limits

A.

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