If a teacher is trying to prove that new method of teaching economics is more effective than traditional one,he/she will conduct a:
A) one-tailed test
B) two-tailed test
C) point estimate of the population parameter
D) confidence interval

Question

Quizplus · Accepted Answer

A one-tailed test is appropriate when the researcher has a directional hypothesis, which means he or she predicts the direction of the difference between the two groups. In this case, the teacher is trying to prove that the new method of teaching economics is more effective than the traditional one, which is a directional hypothesis. Therefore, a one-tailed test is the best choice.

If a Teacher Is Trying to Prove That New Method