D) Number and Topic (Inferential Statistics): 1) Significance Level Concepts Provide evidence from the research journal article to describe and explain how this concept was used a) Concept (1): Statistical significance Definition from Textbook: The degree of risk you are willing to take that you will reject a null hypothesis when it is actually true. (pg. 294) b) Concept (2): T-test for independent means Definition from Textbook: Two groups that were not related in any way or independent of one another (pg. 337)