2. A college professor conducted a study to determine whether a new therapy reduces test anxiety in a random sample of 35 college students. A standard tool for measuring test anxiety has an established mean score of 30 for test anxiety among college students. The professor found that after therapy, the students' mean score for test anxiety was 28. All conditions for inference were met, and the p-value for the appropriate hypothesis test was 0.006. Which of the following statements is the best interpretation of the p-value?
The probability that the null hypothesis is true is 0.006.
The probability that the alternative hypothesis is true is 0.006.
The probability of observing a mean score for test anxiety of 28 after therapy is 0.006.
If the null hypothesis is true, the probability of observing a mean score for test anxiety of at least 28 after therapy is 0.006.
If the null hypothesis is true, the probability of observing a mean score for test anxiety of at most 28 after therapy is 0.006.