Enter the level of confidence for the confidence intervals for the coefficients and the fitted values.
Usually, a confidence level of 95% works well. A 95% confidence level indicates that, if you took 100 random samples from the population, the confidence intervals for approximately 95 of the samples would contain the mean response. For a given set of data, a lower confidence level produces a narrower interval, and a higher confidence level produces a wider interval.
To display the confidence intervals, you must go to the Results sub-dialog box, and from Display of Results, select Expanded tables.