Reducing the measuring interval

Reduce the measuring interval to find the interval where the fit is linear.

1. On the Analyse-it ribbon tab, in the Statistical Analyses group, click Adjust Interval.

   The measuring interval drop-down lists show.

2. In the Measuring interval drop-down lists, select ≥ 1 and ≤ 5.
3. Click Recalculate.

   The analysis report updates.

The linearity plot differences now lie within the allowable nonlinearity of 0.2 mg/dL. Therefore, the method is declared as linear within 0.2mg/dL between the reduced interval 4.65 and 15.4 mg/dL.