MN 503 Unit 3 DQ 1

Topic 1: Types of t test

Explain the difference between a one-tailed and two-tailed t test   using your own words. Validate your explanation by citing credible expert   sources (textbooks, peer-reviewed journal articles, etc.). 

State two research hypotheses that can be tested using a one-tailed t   test, and discuss why a one-tailed t test would be appropriate for those   hypotheses. 

State two research hypotheses that can be tested using a two-tailed t   test, and discuss why a two-tailed t test would be appropriate for those   hypotheses