Two groups of people with coronary heart disease receive two different drugs. The patients are followed over
Question:
Two groups of people with coronary heart disease receive two different drugs. The patients are followed over time. Among the patients in the first group, 1.7% eventually suffered a heart attack. 0.9% of the patients in the second group eventually suffered a heart attack.
Assuming that the population proportions are same as the sample proportions obtained in the problem above, what is the sample size that you actually need to detect that difference across the two groups? Let's use a 80% power when calculating the sample size
You must explain what test you are using, the hypotheses you are testing, and the values you are using as input in the sample size calculator.
Statistics for the Life Sciences
ISBN: 978-0321989581
5th edition
Authors: Myra Samuels, Jeffrey Witmer, Andrew Schaffner