Flashcards in Statistics Deck (4):
How are confidence intervals interpreted?
95% probability of containing the true population mean.
95% of such confidence intervals with contain the true population mean if repeated random samples are taken.
This interval contains the value of the true RR with 95% confidence.
We may be 95% confident that the RR is not 1.
What is relative risk and in what type of study is it used?
Risk in exposed/risk in non-exposed = a/a+b divided by c/c+d
USED in a COHORT STUDY
What is odds ratio and in what type of study is it used?
Used in a case control study when the incidence in either population = ad/bc.