管制界限是用以表示製程中僅有共同原因存在時的平均值及全距的變化之允許界

管制界限是用以表示製程中僅有共同原因存在時的平均值及全距的變化之允許界限，計算前須剔除異常因子。其計算方法是依據樣組內之樣本數目及全距所顯示的組內變異而決定，並依下列公式為之。

結果 (英文) 1:

Control limit is used to represent the average and total distance change when only the presence of the common causes of manufacturing process tolerance limit, prior to the abnormal factor is calculated to be excluded. It is calculated based on the number of samples within the sample group and the full set from the displayed variation is determined, according to the following equation and to whom.

結果 (英文) 2:

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結果 (英文) 3:

The control limit is used to express the allowable limit of the average value and the change of the whole distance when there is only a common cause in the process. The abnormal factor must be removed before calculation. The calculation method is determined by the number of samples in the sample group and the intra group variation displayed in the full range, and it is based on the following formula.