Columns:
Rows:

Basic QC Word Search Puzzle

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Flap 1 Flap 2
standard deviation  square root of the variance  
mean  arithmetic average  
coefficient of variation  standard deviation divided by the mean  
shift  six results on one side of mean  
trend  six results in one direction  
1 2s rule  1 control exceeds 2 SD (warning rule)  
1 3s rule  1 control exceeds 3 SD (reject rule)  
2 2s rule  2 control levels exceed 2 SD (reject rule)  
R 4s rule  2 control levels in same run exceed 4 SD in opposite directions (reject rule)  
4 1s rule  4 control levels exceed 1 SD on same side of mean  
10 x rule  10 control levels on the same side of the mean  
warning rule  evaluate other rules if no other rule is violated, run is accepted  
reject rule  reject run and troubleshoot to find problem