Suppose you have randomly selected high school students to take a course to improve their SAT scores.You find that the mean of their subsequent SAT scores is not significantly different from the population mean of SAT scores for those students who have not taken the course.Which of the following statements is the most appropriate conclusion?
A)We have proven that the course does not affect SAT scores.
B)We have obtained evidence consistent with the notion that the course has an effect on SAT scores.
C)We have obtained no convincing evidence that the course affects SAT scores.
D)The evidence suggests that the course may have an effect on SAT scores.

Question

Quizplus · Accepted Answer

The statement "We have obtained no convincing evidence that the course affects SAT scores." is the most appropriate conclusion based on the given information. While the mean SAT score of the students who took the course was not significantly different from that of the population who did not take the course, this does not prove that the course does not have an effect. However, it also does not provide strong enough evidence to say that the course does have an effect. Therefore, the most appropriate conclusion is that there is no convincing evidence either way.

Suppose You Have Randomly Selected High School Students to Take