The Minnesota Department of Transportation installed a state-of-the-art weigh-in-motion scale in the concrete surface of the eastbound
Question:
a. Construct two scatter plots, one of y1 versus x and the other of y2 versus x.
b. Use the scatter plots of part a to evaluate the performance of the weigh-in-motion scale both before and after the calibration adjustment.
c. Calculate the correlation coefficient for both sets of data and interpret their values. Explain how these correlation coefficients can be used to evaluate the weigh-in-motion scale.
d. Suppose the sample correlation coefficient for y2 and x was 1. Could this happen if the static weights and the weigh-in-motion readings disagreed? Explain.
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Related Book For
Statistics For Business And Economics
ISBN: 9780321826237
12th Edition
Authors: James T. McClave, P. George Benson, Terry T Sincich
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