Example of Prediction Intervals
Suppose you are interested in computing prediction intervals for the next 10 observations of ozone level.
1. Select Help > Sample Data Library and open Cities.jmp.
2. Select Analyze > Distribution.
3. Select OZONE and click Y, Columns.
4. Click OK.
5. Click the OZONE red triangle and select Prediction Interval.
Figure 3.17 The Prediction Intervals Window
6. In the Prediction Intervals window, type 10 next to Enter number of future samples.
7. Click OK.
Figure 3.18 Example of a Prediction Interval Report
In this example, you can be 95% confident about the following:
• Each of the next 10 observations will be between 0.013755 and 0.279995.
• The mean of the next 10 observations will be between 0.115596 and 0.178154.
• The standard deviation of the next 10 observations will be between 0.023975 and 0.069276.