8. The authors reported the results as an odds ratio (OR) and 95% confidence interval. We prefer the results to be reported as a risk ratio RR. Obtain the appropriate RR and the 95% CI. Show your work. Paste in the relevant software or website results.

9. Note that the table does not report a P-value. Is a P-value necessary? Explain.

10. Obtain the relevant P-value. Interpret the P-value. Paste in the relevant software or website results.

11. What is the correct conclusion about immediate angiography vs. delayed angiography and survival at 90 days? Explain. Be thorough and clear.

12. Regarding the primary end point: state the appropriate Null and Alternative Hypotheses.

13. Obtain the appropriate risk difference, it’s 95% CI, and the P-value. Paste in the relevant software or website results. Interpret the CI and P-value.

14. Taking the risk difference approach, what is the correct conclusion about immediate angiography vs. delayed angiography with respect to survival at 90 days?

15. Why would researchers take the risk difference approach, rather than the ratio approach?

16. State the relevant Null and Alternative Hypotheses.

17. Perform the appropriate statistical test. Thoroughly explain your choice and the assumptions underlying the statistical test.

18. Obtain the 95% confidence interval for the treatment difference in the depression score at 6 months.

19. What is your conclusion? Explain

Regarding death at 6 months:

20. State the relevant Null and Alternative Hypotheses.

21. Perform the appropriate statistical test. Thoroughly explain your choice and the assumptions underlying the statistical test.

22. Obtain the 95% confidence interval for the treatment difference in death at 6 months.

23. What is your conclusion?  Explain