Fitting a precision profile

Fit a precision profile function to describe the imprecision across the measuring interval.

1. On the Analyse-it ribbon tab, in the MSA group, click Profile.
   The Precision Profile panel opens in the analysis task pane.
2. In the Precision profile drop-down list, select CV%.
3. Select the Reproducibility, Within Factor A, and Repeatability check boxes.
4. Select the Logarithmic X-axis scale check box so that the scale of the precision profile will show the lower levels more clearly.
5. Select the Fit variance function check-box and then in the Model drop-down, select 3-parameter.
6. Click Recalculate.

   The analysis report updates.