An education professor is interested in whether there is any difference between the proportion of students who have taken a review course that pass the bar exam and the proportion of those who have not taken a review course that pass the exam. She collects the following information from a random sample of students:

Test the hypothesis that the population proportions are equal at the 10 % level of significance in terms of a two-tailed test.

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Review course No review course Proportion passing .55 .49 Number of students. 300 400