A math teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the administrator of the exam, scores are normally distributed with u = 514. The teacher obtains a random sample of 1800 students, puts them through the review class, and finds that the mean math score of the 1800 students is 519 with a standard deviation of 113. Complete parts (a) through (d) below. UD. noi i -D14, n: D14 C. Ho: 514, H,: > 514 OD. Ho: >514, H,: u514 (b) Test the hypothesis at the a=0.10 level of significance. Is a mean math score of 519 statistically significantly higher than 514? Conduct a hypothesis test using the P-value approach. Find the test statistic. to -O (Round to two decimal places as needed.)

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