A traffic study found that 676 automobiles entered a busy road intersection during the 3 period from 6 AM to 9 AM. Within this period, 257 turned left, 221 turned right, and 198 drove straight through the intersection. Below is the summary of the data. Turned left Turned right Drove straight through Observed 257 221 198 Calculate the value of the test statistic. Expected 225.33 225.33 225.33 Using the goodness-of-fit test, we want to test if traffic is not evenly divided among the three directions. A. 6.0777 Choose the most accurate null and alternative hypotheses for the test. B. 6.1185 A. Ho: The traffic is evenly divided among the three directions. HA: 34% of traffic turns left, 33% of traffic turns right and 33% of traffic drives C. 7.2068 straight. D. 7.8492 B. Ho: 34% of traffic turns left, 33% of traffic turns right and 33% of traffic drives straight. HA: The traffic is not evenly divided among the three directions. C. Ho: 38% of traffic turns left, 33% of traffic turns right and 29% of traffic drives straight. HA: At least one of the percentages differs from its hypothesized value. D. Ho: The traffic is evenly divided among the three directions. HA: The traffic is not evenly divided among the three directions. Calculate the degrees of freedom of the test statistic. 2 D. UI . At 1% significance level, the decision is to A. reject Ho; it can be concluded that 34% of traffic turns left, 33% of traffic turns right and 33% of traffic drives straight B. reject Ho; it can be concluded that the traffic is evenly divided among the three directions do not reject Ho; it cannot be concluded the traffic is not evenly divided among the three directions D. do not reject Ho; it cannot be concluded that 34% of traffic turns left, 33% of traffic turns right and 33% of traffic drives straight