Example 17.5.1
test C*beta=d0
speed={38.8, 31.5, 10.6, 16.1, 7.7,
8.3, 8.5,
11.1, 8.6, 11.1,
9.8,
7.8, 31.8, 31.6, 34.0, 28.9, 28.8, 10.5, 12.3, 13.2,
11.4,
11.2, 10.3, 11.4};
density={20.4, 27.4, 106.2, 80.4, 141.3, 130.9, 121.7, 106.5,
130.5, 101.1, 123.9,
144.2, 20.9, 30.8, 26.5, 35.7, 30.0,
106.2,
97.0, 90.1, 106.7, 99.3, 107.2, 109.1};