Part C: Practicing with p-values and confidence intervals: Tell if each measure of association is statistically significant and briefly explain why or why not. (Hint: Refer to the Table on slide 19 of the PowerPoint on the page: Module 5: Internal Validity: Random Error- Confidence Intervals and p-values.) 17. RR=1.69 p=0.52 18. OR=0.95 (95% CI: 0.85-1.05) 19. OR=2.10 p=.003 20. RR= 2.56 (95% CI: 1.90-3.24)