Control limit: Difference between revisions

(11 intermediate revisions by 3 users not shown)

Line 1:

'''Control limits''' are horizontal lines drawn on an [[statistical process ~~control|statistical process]] [[~~control chart]], usually at a distance of ±3 [[standard ~~deviation]]s from the [[mean]]~~ of the plotted [[statistic]].

'''Control limits''' are horizontal lines drawn on an statistical process control chart, usually at a distance of ±3 standard deviations of the plotted statistic from the statistic's mean.

For ~~[[normal distribution|~~normally distributed]] statistics, the area bracketed by the control limits will on average contain 99.73% of all the plot points on the chart, as long as the process is and remains in statistical control.

For normally distributed statistics, the area bracketed by the control limits will on average contain 99.73% of all the plot points on the chart, as long as the process is and remains in statistical control.

Control limits should not be confused with ''tolerance limits'', which are completely independent of the [[distribution]] of the plotted sample statistic.

Control limits should not be confused with ''tolerance limits'', which are completely independent of the distribution of the plotted sample statistic.

==See also==

* [[Management]]

[[Category:Statistics]]

~~[[Category:Management]]~~

~~[[Category:Measurement]]~~

~~[[Category:Quality]]~~

~~[[Category:Quality control]]~~

~~[[Category:Evaluation methods]]~~

~~[[Category:Process management]]~~

~~{{statistics-stub}}~~

~~{{industry-stub}}~~

@@ Line 1: / Line 1: @@
-'''Control limits''' are horizontal lines drawn on an [[statistical process control|statistical process]] [[control chart]], usually at a distance of ±3 [[standard deviation]]s from the [[mean]] of the plotted [[statistic]].
+{{ntnes}}
+'''Control limits''' are horizontal lines drawn on an statistical process control chart, usually at a distance of ±3 standard deviations of the plotted statistic from the statistic's mean.
-For [[normal distribution|normally distributed]] statistics, the area bracketed by the control limits will on average contain 99.73% of all the plot points on the chart, as long as the process is and remains in statistical control.
+For normally distributed statistics, the area bracketed by the control limits will on average contain 99.73% of all the plot points on the chart, as long as the process is and remains in statistical control.
-Control limits should not be confused with ''tolerance limits'', which are completely independent of the [[distribution]] of the plotted sample statistic.
+Control limits should not be confused with ''tolerance limits'', which are completely independent of the distribution of the plotted sample statistic.
+==See also==
+* [[Management]]
 [[Category:Statistics]]
-[[Category:Management]]
-[[Category:Measurement]]
-[[Category:Quality]]
-[[Category:Quality control]]
-[[Category:Evaluation methods]]
-[[Category:Process management]]
-{{statistics-stub}}
-{{industry-stub}}

Control limit: Difference between revisions

wikademia>Wikademia