From 9c366d5ae5f6afe8b6f9eacc9357954f6b7e4b28 Mon Sep 17 00:00:00 2001 From: anhoej Date: Sat, 5 May 2018 11:43:53 +0200 Subject: [PATCH] Fix typo. --- vignettes/qicharts2.Rmd | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/vignettes/qicharts2.Rmd b/vignettes/qicharts2.Rmd index ec176a4..44510df 100644 --- a/vignettes/qicharts2.Rmd +++ b/vignettes/qicharts2.Rmd @@ -135,7 +135,7 @@ As expected from random numbers, the previous run and control charts exhibit com ### Shewhart's 3-sigma rule -Shewhart devised one test to identify special cause variation, the 3-sigma rule, which signals if one or more data points fall outside the 3-sigma limits. The 3-sigma rule is effective in detecting larger (> 3SD) shifts in data. +Shewhart devised one test to identify special cause variation, the 3-sigma rule, which signals if one or more data points fall outside the 3-sigma limits. The 3-sigma rule is effective in detecting larger (> 2SD) shifts in data. ```{r} # Simulate a special cause to y in the form of a large, transient shift of 4 standard deviations.