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DS 412 TEST 1

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Question
Answer
show Average, use past if offered bc already in control  
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show Range, use past if offered bc already in control (less accurate as sample size gets larger)  
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UCLx   show
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show (X-bar2) - A2*R-bar (for x-bar chart)  
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UCLR   show
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LCLR   show
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A2   show
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n   show
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show used with R-bar chart, on table  
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show past UCL/LCL, run, extreme jump/drop  
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σ   show
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σx   show
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Z   show
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show x-bar2 + Z*σx  
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LCLx using σx   show
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show √ p-bar (1-Pbar)/n  
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show # defects/#observations  
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UCLp   show
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show P-bar - Z*σp  
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show use when target & x-bar not close MIN of [x-bar-Lower spec/3σ,Upper-x-bar/3σ  
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show Upp-Low Spec/6σ  
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Capable?   show
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show MEASURED/quantitative (weight, length, volume, time)*not used if specifications are complex/costly/difficult/unnecessary  
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show COUNTED/Qualitative (Yes/No) color,taste,smell,surface texture  
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Non-destructive sampling   show
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Destructive Sampling   show
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In Control (random)   show
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Average σ = Average R (when...)   show
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show Probability of searching for a cause when none exists  
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show Probability of concluding that nothing has changed  
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Errors controlled by...   show
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+/- 1σ   show
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+/- 2σ   show
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+/- 3σ   show
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Created by: victoriaoharra
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