Least-Squares Regression Line, Residuals Plot and Histogram of Residuals

Click the link below and save the following JMP file to your Desktop:

Now go to your Desktop and double click on the JMP file you just downloaded.

This action will start JMP and display the content of this file:

Go to the **Analyze** menu and select **Fit Y by X**:

Click the column **Gross Sales**, then click **Y, Response**.

Click the column **Items**, then click **X, Factor**.

Your screen should now look similar to the following:

Click **OK**.

The scatter plot is produced:

Click on the red down arrow next to **Bivariate Fit of Gross Sales By Items**
and select **Fit Line**:

You should see:

To generate the residuals plot, click the red down arrow next to **Linear
Fit** and select **Plot Residuals**.

You should see:

To make a histogram of the residuals, click the red arrow next to **Linear
Fit** and select **Save Residuals**.

Go back to the data file, and see that the last column is now **Residuals Gross
Sales**.

Follow the instructions for making a histogram in the tutorial
Histogram and Box Plots for the **Residuals Gross
Sales** column.

You should see:

(Based on JMP Pro 16.0.0 Revised 7/7/2021)