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

For commercial use

75 EURO

Calculates the STDEV () of the data-set. The STDEV is an indication of the variation of the data. A small STDEV means a small variation and the data points are close to the Mean.

STDEV or includes all the variation in the process, for short therm variation see STDEV within

- The bigger the STDEV the bigger the variation in the data-set.

To get the Confidence interval click on the graph of the data-set and it will be visible in the graph pop-up.

=Mean

s = STDEV

Data file

- Normal Distribution Variation F-test
- Not Normal Distribution Variation Levene test

- Normally and Not Normal Distribution Variation Levene test