The Department of Transportation wishes to know if states with a larger percentage of urban population have

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The Department of Transportation wishes to know if states with a larger percentage of urban population have higher rates of automobile and pickup crash deaths. In addition, it wants to know if either the average speed on rural roads or the percentage of rural roads that are surfaced is related to crash death rates. Data for this study are included in the data file Vehicle Travel State.
a. Prepare graphical plots of crash deaths versus each of the potential predictor variables. Note the relationship and any unusual patterns in the data points.
b. Prepare a simple regression analysis of crash deaths on the potential predictor variables. Determine which, if any, of the regressions indicate a significant relationship.
c. State the results of your analysis and rank the predictor variables in terms of their relationship to crash deaths.
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Statistics For Business And Economics

ISBN: 9780132745659

8th Edition

Authors: Paul Newbold, William Carlson, Betty Thorne

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