# Using Minitab to Lighten the Workload

For any sizeable data set, and even for the small ones, you'll definitely want to use Minitab to calculate the confidence and/or prediction intervals for you. To do so:

(1) Under the **Stat** menu, select **Stat**, and then select **Regression**:

(2) In the pop-up window that appears, in the box labeled **Response**, specify the response and, in the box labeled **Predictors**, specify the predictor variable:

Then, click on the **Options...** button.

(3) In the pop-up window that appears, in the box labeled **Prediction intervals for new observations**, type the value of the predictor variable for which you'd like a confidence interval and/or prediction interval:

In the box labeled **Confidence level**, type your desired confidence level. (The default is 95.) Then, select **OK**.

(4) And, select **OK** on the main pop-up window. The output should appear in the session window. The first part of the output should look something like this:

while the second part of the output, which contains the requested intervals, should look something like this: