A researcher evaluates the number of traffic accidents that occur daily at each of the four most-traveled roads in a local city to determine if one of the roads is more dangerous (i.e., has an unusually high proportion of traffic accidents). What type of analysis is appropriate for this research design?

A. one-way analysis of variance
B. ?2 goodness-of-fit test
C. factorial analysis of variance
D. ?2 test for independence


Ans: B

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