It is reported that scores on a particular test of historical trivia given to hi

Question

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?

Explanation / Answer

A small p-value (typically 0.05) indicates strong evidence against the null hypothesis, so you reject the null hypothesis.

Thus, it may be concluded that her 5 classes of high school seniors will score significantly better than the national average on this test.

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