Use the following information for questions:
A university administrator writes a report in which he states that at least 45% of all students have driven while under the influence of drugs or alcohol. Many others think the correct percent is less than 45%.
-Which of the following statements describes the p-value that was calculated in this situation?
A) It is the probability that the sample percent would be 39% or less if the true percent in the population actually is less than 45%.
B) It is the probability that the sample percent would be 39% of less if the true percent in the population actually is 45%.
C) It is the probability that the true percent in the population is 45%.
D) It is the probability that the true percent in the population is 39%.

Question

Use the following information for questions:
 A university administrator writes a report in which he states that at least 45% of all students have driven while under the influence of drugs or alcohol. Many others think the correct percent is less than 45%.
-Which of the following statements describes the p-value that was calculated in this situation?
A) It is the probability that the sample percent would be 39% or less if the true percent in the population actually is less than 45%.
B) It is the probability that the sample percent would be 39% of less if the true percent in the population actually is 45%.
C) It is the probability that the true percent in the population is 45%.
D) It is the probability that the true percent in the population is 39%.

Quizplus · Accepted Answer

The p-value is the probability of obtaining a sample statistic (e.g., 39% or less) as extreme as the one observed, under the assumption that the null hypothesis (in this case, that the true percent in the population is 45%) is true.

Use the Following Information for Questions