14 2 0 7 1 0 0 0 3 95 0 99 0 12 Example of Prediction Intervals by T. Sawa (TEST42) PI X = T(year) - 1965 Y = World record of 1500m free-style swimming (sec) - 17X60 (2F10.1) -16.0 79.0 -9.0 52.9 -7.0 28.7 -5.0 11.0 -2.0 5.5 -1.0 -1.3 0.0 -1.4 1.0 -18.4 2.0 -25.9 3.0 -51.5 4.0 -55.5 5.0 -62.9 7.0 -67.4 8.0 -88.2 (8F10.1) -15.0 -13.0 -10.0 -6.0 -4.0 -3.0 6.0 13.0 15.0 20.0 25.0 35.0