A research hypothesis is that the variance of stopping distances of automobiles on wet pavement is substantially
Question:
On dry pavement, the standard deviation is 16 feet.
a. At a .05 level of significance, do the sample data justify the conclusion that the variance in stopping distances on wet pavement is greater than the variance in stopping distances on dry pavement? What is the p-value?
b. What are the implications of your statistical conclusions in terms of driving safety recommendations?
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Related Book For
Statistics For Business And Economics
ISBN: 9780538481649
11th Edition
Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
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