A city expressway with four lanes in each direction was studied to see whether drivers preferred to drive on the inside lanes. A total of 1000 automobiles were observed during the heavy early-morning traffic, and their respective lanes were recorded. The results are shown in the following table. Lane Count 1 294 2 276 O Standard Normal distribution O Chi-squared distribution with 3 degrees of freedom Ot distribution with 3 degrees of freedom. 3 238 To test whether there is sufficient evidence to indicate that some lanes are preferred over others, they test Ho P1 P2 P3 P4 vs. Ha Pi Pj, for some i ‡j, i, j = 1, 2, 3, 4. What is the distribution of the test statistic? O Chi-squared distribution with 4 degrees of freedom 4 192 Total 1000

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