Question

The report Controlling Road Rage: A Literature Review and Pilot Study was prepared for the AAA Foundation for Traffic Safety by D. Rathbone and J. Huckabee. The authors discussed the results of a literature review and pilot study on how to prevent aggressive driving and road rage. Road rage is defined as ". . . an incident in which an angry or impatientmotorist or passenger intentionally injures or kills another motorist, passenger, or pedestrian, or attempts or threatens to injure or kill another motorist, passenger, or pedestrian." One aspect of the study was to investigate road rage as a function of the day of the week.
The following table provides a frequency distribution for the days on which 69 road-rage incidents occurred.
Day Frequency
Sunday ............ 5
Monday ............ 5
Tuesday ............ 11
Wednesday .......... .. 12
Thursday ............. 11
Friday .............. 18
Saturday ............. 7
At the 5% significance level, do the data provide sufficient evidence to conclude that road-rage incidents are more likely to occur on some days than on others?


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  • CreatedAugust 13, 2015
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