Boxplot for Perform Bias Study

Use Boxplot to visualize bias study results. With a boxplot, you can estimate average bias with readings across multiple groups.

This example applies to the Measurement System Analysis Module. For more information, go to www.minitab.com/measurement-system-analysis-module.

Example

In this worksheet, Measurement is the Y variable, and Part and Operator are the categorical variables.

Choose Solutions Modules > Capabilities > Measurement System Analysis, then select Launch.
Under Bias Study, select Select a Bias Study.
Select Perform bias study, then click OK.
Select Boxplot, then click OK.
In Graph variables (desktop app) or Y-variable (web app), enter the column that contains the measurement data.
To explore groups in your data, do one of the following.
- In the web app, in Categorical variables (1-4), enter the columns that define the groups.
- In the desktop app, in Categorical variables for grouping (1-4, outermost first), enter the columns that define the groups.
Click OK.

For more information about this analysis, click Help in the main dialog box.