35. It is reported that scores on a particular test of historical trivia given t

Question

35. It is reported that scores on a particular test of historical trivia given to high school students are approximately normally distributed with a mean of 85. Mrs. Rose believes that her 5 classes of high school seniors will score significantly better than the national average on this test. At the end of the semester, Mrs Rose administers the historical trivia test to her students. The students score an average of 89 on this test. After conducting the appropriate statistical test, Mrs. Rose finds that the p-value is .0025. Which of the following is the best interpretation of the p-value? a. A p-value of.0025 provides strong evidence that Mrs. Rose's class b. A p-value of.0025 indicates that there is a very small chance that Mrs c. A p-value of.0025 provides evidence that Mrs. Rose is an exceptional out performed high school students across the nation. Rose's class outperformed high school students across the nation teacher who was able to prepare her students well for this national test. d. None of the above.

Explanation / Answer

The best interpretation of the p-value is,

(a) A p-value of 0.0025 provides strong evidence that Mrs. Rose's class outperformed high school across the nation. Hence, option(a) is correct. (since less the p-value represent better result).

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