Fitting a variance function

Plot a precision profile to observe the performance over the entire measuring interval.

1. Activate the analysis report worksheet.
2. On the Analyse-it ribbon tab, in the MSA group, click Profile.
   The analysis task pane Precision Profile panel opens.
3. Select the Fit variance function check box.
4. In the Model drop-down list, select the variance function.
5. Optional: To estimate the limit of quantitation using functional sensitivity, select the Predict X given CV check box, and then in the edit box, type the CV as a percentage (for example 20%).
6. Click Recalculate.