A research hypothesis is that the variance of stopping distance of automobiles on wet pavement is substantially greater than the variance of stopping distances of atomobiles on dry pavement.In the research study, 16 automobiles traveling at the same speeds are tested for stopping distance on wet pavement and then tested fir stopping distances on dry pavement.On wet pavement, the standard deviation of stopping distances is 32 feet.On dry pavement, the standard 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 th ep-value?

b) What are the implications of your statistical conclusions in terms of driving safety recommendations?

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