Imagine that the cross-tabulation of vehicle status and cutting off other vehicles, as described in Problem 6, actually looked like the distribution shown in Table 12.22.

a. Examine Table 12.22. Does there appear to be a relationship between status of vehicle and whether the vehicle cuts off other vehicles? Explain your answer.

b. Imagine that the sample chi-square statistic in a test of independence for the cross-tabulation in Table 12.22 is significant at the 0.05 alpha-level. The New York Times ran an article about the research called “The Rich Drive Differently, a Study Suggests.” Is the result of the chi-square test consistent with the title?