Write a 1000-word paper in which you define how hypothesis testing and its usefulness.
One-Tailed Vs. Two-Tailed Tests: Differences & Examples
A one-tailed test, also known as a directional hypothesis, is a test of significance to determine if there is a relationship between the variables in one direction. A one-tailed test is useful if you have a good idea, usually based on your knowledge of the subject, that there is going to be a directional difference between the variables.
A two-tailed test, also known as a non directional hypothesis, is the standard test of significance to determine if there is a relationship between variables in either direction. Two-tailed tests do this by dividing the .05 in two and putting half on each side of the bell curve.
Format your paper consistent with APA guidelines with abstract, in body cites, conclusion paragraph and scholarly references are a must.