parent nodes: Control Chart | Cp Cpk % out of tolerance | Normal Distribution | PPM (Parts Per Million) | Six sigma | Statistical process control (SPC)

Sigma level

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Basic Statistics
Mean
n
Median
STDEV
Cp Cpk % out of tolerance
Min/Max
Compare with
Calculate Difference
Diff mean normally
Diff median not normally
Diff variation normally
Diff variation not normally
Normally test
Correlation
Regression
Kurtosis
Skewness

Full version of Develve
For commercial use
75 EURO

A sigma level of 1 is one time the STDEV.
Two sided table
Cpk Sigma level % out of tolerance PPM out of tolerance
0.33 1.0 31.73 317310.508
0.50 1.5 13.36 133614.403
0.67 2.0 4.55 45500.264
0.83 2.5 1.24 12419.331
1.00 3.0 0.27 2699.796
1.17 3.5 0.05 465.258
1.33 4.0 0.01 63.342
1.50 4.5 0.001 6.795
1.67 5.0 0.0001 0.573
1.83 5.5 0.000004 0.038
2.00 6.0 0.0000002 0.002




Example

Sigma level of 2 => 100-(34.1 + 13.6 + 34.1 + 13.6) = 4.6%

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