Two-Sample Hypothesis Test: Traffic Accidents
Not what you're looking for?
A number of minor automobile accidents occur at various high-risk interactions in Teton County despite traffic lights. The Traffic Department claims that a modification in the type of light will reduce these accidents. The county commissioners have agreed to proposed experiment. Eight intersections were chosen at random, and the lights at those intersections were modified. The numbers of minor accidents during a six-month period before and after the modifications are provided in the attached Excel sheet.
At the 0.01 significance level is it reasonable to conclude that the modification reduced the number of traffic accidents?
Purchase this Solution
Solution Summary
A two-sample hypothesis test is conducted for a study on reduced traffic accidents.
Solution Preview
Conclusion: Since the p value is greater than 0.01 level of significance we may ...
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.