Track Stats! An experiment was conducted to investigate the effect of a training program on the length of time for a typical male college student to complete the 100-yard dash. Nine students were placed in the program. The reduction y in time to complete the 100-yard dash was measured for three students at the end of 2 weeks, for three at the end of 4 weeks, and for three at the end of 6 weeks of training. The data are given in the table.

Reduction in Time, y (sec)

1.6, .8, 1.0

2.1, 1.6, 2.5

3.8, 2.7, 3.1

Length of Training, x (wk)

2

4

6

Use an appropriate computer software package to analyze these data. State any conclusions you can draw.