In 2005, Stanley Ahlon and three financial partners formed Dynamic Scales, Inc. The company was based on an idea Stanley had for developing a scale to weigh trucks in motion and thus eliminate the need for every truck to stop at weigh stations along high-ways. This dynamic scale would be placed in the highway approximately one-quarter mile from the regular weigh station. The scale would have a minicomputer that would automatically record truck speed, axle weights, and climate variables, including temperature, wind, and moisture. Stanley Ahlon and his partners believed that state transportation departments in the United States would be the primary market for such a scale.
As with many technological advances, developing the dynamic scale has been difficult. When the scale finally proved accurate for trucks traveling 40 miles per hour, it would not perform for trucks traveling at higher speeds. However, eight months ago, Stanley announced that the dynamic scale was ready to be field-tested by the Nebraska State Department of Transportation under a grant from the federal government. Stanley explained to his financial partners, and to Nebraska transportation officials, that the dynamic weight would not exactly equal the static weight (truck weight on a static scale). However, he was sure a statistical relationship between dynamic weight and static weight could be determined, which would make the dynamic scale useful.
Nebraska officials, along with people from Dynamic Scales, installed a dynamic scale on a major highway in Nebraska. Each month for six months, data were collected for a random sample of trucks weighed on both the dynamic scale and a static scale. Table 15.3 presents these data.
Once the data were collected, the next step was to determine whether, based on this test, the dynamic scale measurements could be used to predict static weights. A complete report will be submit-ted to the U.S. government and to Dynamic Scales.

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TABLE 15.3 Test Data for the Dynamic Scales Example Front-Axle Static Front-Axle Dynamic Truck Speed Temperature Moisture Month Weight (lb.) Weight (b.) (mph) January 0.00 1,800 1,311 1.504 1.388 1.250 2.102 1410 1.000 1.430 1,073 1.502 1.721 .113 978 1,254 1.625 1,904 1.390 1.402 1.100 1,950 1,475 1,103 1.387 948 1.493 1,902 1.415 983 0.40 24 0.00 0.10 0.20 February 0.00 0.40 0.00 0.00 0.21 0.32 0.00 0.00 0.21 0.40 0.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00 0.00 0.00 59 March 36 48 48 April 1,052 1,127 1406 875 1.350 1.102 1.240 1,087 993 1.408 1,420 1,808 1404 900 1.275 1.120 253 1,040 1.102 1-400 1404 1.790 1.396 1.004 1.127 59 40 May 52 59 62 68 70 71 83 67 Junc 54 49 933 1.150 0.00