Question

1. As health commissioner of city B you have decided to implement a $10 million exercise program if results from a recently concluded cohort study in 2,000 males aged 40-59 years showed there was 95% confidence (exact binomial) that the relative risk (RR) among subjects with a baseline resting heart rate (HR) > 80 beats/min vs. those with a baseline resting HR ≤ 80 beats/min was different from 1.50. The RR estimate was 1.55 with a 95% confidence interval of 1.31 to 1.91. What is your decision? ___

1. Implement the program.

2. Do not implement the program.

Answer 1

We will implement the program if the RR is different from 1.50 .

The 95% confidence interval of RR is from 1.31 to 1.91 . Clearly the intetval contains the point 1.50 .

So at 95% confidence level we can't say that the RR is different from 1.50

So, Do not implement the program .