8.3  Using Minitab to Lighten the Workload
8.3  Using Minitab to Lighten the WorkloadMinitab^{®}
Use Minitab to calculate the confidence and/or prediction intervals
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:

Under the Stat menu, select Stat, and then select Regression:

In the popup 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.

In the popup 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.

And, select OK on the main popup window. The output should appear in the session window. The first part of the output should look something like this:
The regression equation is NEXT = 33.8 + 10.7 DURATION
Predictor Coef SE Coef T P Constant 33.828 2.262 14.96 0.000 DURATION 10.7410 0.6263 17.15 0.000 Analysis of Variance
Source DF SS MS F P Regression 1 13133 13133 294.08 0.000 Residual Error 105 4689 45 0.000 Total
106 17822 while the second part of the output, which contains the requested intervals, should look something like this:
Predicted Values for New Observations
New Obs Fit SE Fit 95% CI 95 % PI 1 85.385 1.059 (83.286, 87.484) (71.969, 98.801) Values of Predictors for New Observations
New Obs DURATION 1 4.80