On the fitted line plot, the confidence and prediction intervals are displayed as dashed lines that identify the upper and lower limits of the intervals.
- Confidence interval
- Display the 95% confidence interval, which represents a range of likely values for the mean response.
- Prediction interval
- Display the 95% prediction interval, which represents a range of likely values for a single new observation. The prediction interval is always wider than the corresponding confidence interval because predicting a single response value is less certain than predicting the mean response value.