Question

7. *(1 point) A study assessed the association between stress related disorders and subsequent risk of cardiovascular disease using a population-based, sibling cohort study. In sibling-based comparisons, individuals with a stress related disorder had 64% higher risk of cardiovascular disease as compared to their sibling without a stress disorder (RR = 1.64; 95% confidence interval, 1.45 to 1.84). The researchers also performed a hypothesis test. The null hypothesis and alternative hypothesis were Null hypothesis: There is no difference in the risk of cardiovascular disease between siblings with and without a distress disorder. Null hypothesis: There is a difference in the risk of cardiovascular disease between siblings with and without a distress disorder. The p-value from the hypothesis was A. Less than or equal to 0.05 B. Greater than 0.05 C. Cannot be determined Briefly describe the rationale for your answer

Answer 1

Question 7

Here RR = 1.64

and 95% confidence interval of RR = (1.45, 1.84)

so here the confidence interval is having all its values higher than 1 so that means RR is never less than 1 or 1.

so here we can say that p - value from the hypothesis shall be less than or equal to 0.05 as there is a difference in the risk of cardivascular disease between siblings with and without a distress disorder.