7 In evidence based practice, the goal of treatment evaluation is to demonstrate that a new treatment is superior to the current standard of care. In Null hypothesis statistical testing, which of the following is the probability of failing to recognize that a new treatment is superior? A. a= 0.05 B. B=0.20 C. 1-a= 0.95 D.1-B=0.80 E. None of the above Question 8 One of the fill statements is not true; which one? A. The a is a rejection criterion, while p is what actually happened in the experiment B.When p is less than a, results are considered statistically significant C.The a needs to be calculated, while p is simply chosen. D. The a value is the theoretical probability of making an error. E. All of the above Question 10. In a QI project in a health care setting, the DNP is trying to demonstrate that a new evidence based guideline leads to better patients outcomes than the currently used protocol. Using null hypothesis testing she needs to demonstrate that there is a low probability that the apparent superiority of the new guideline would occur randomly- therefore the new guideline must be superior to the old practice. Which of the following p values would support such a conclusion.? A. p=0001, indicating that this difference between the new and the old treatment would occur randomly in only 1 in 10,000 QI projects. B. p> .05, indicating that this difference between the new and the old treatment would probably happen in more than 5 out of 100 QI project. C. p< .01 indicating that this difference between the new and the old treatment would occur consistently in 10 of 10,000 QI project D.p> . 0001 indicating that this difference between the new and the old treatment probably occurred by Chan alone. E . None of the above