Report Instructions: Using complete sentences, complete the following prompts.
1. Formulate a research question for a population of interest. For your research question,
select a continuous numerical outcome of interest. Then, select a binary exposure such
that you have two groups that you are comparing, one with your exposure, and one
without your exposure of interest. This will allow you to compare two population means
with one another. Remember to specify person, place, and time in your research
question. o Here is an example that uses a continuous numerical outcome of interest and
binary exposure. Do present-day U.S. adult patients who take an experimental
drug have lower systolic blood pressure compared to those who do not take the
experimental drug? Our outcome of interest is blood pressure in mmHg, which is
a continuous numerical outcome, measured at the ratio level of measurement.
Our exposure of interest is a binary exposure: experimental drug versus no
experimental drug. There are two options for a patient they either get the
experimental drug, or they do not. This makes it a binary exposure. We are
comparing the mean blood pressure values between two groups: those who
received the drug, and those who did not. 2. How would you obtain a representative sample from your study population? For
example, if you decide to enroll participants in a study in order to collect data, how do
you recruit these participants? Describe what measures you would take to avoid
selection bias. (0.5 points) 3. Write, in a full sentence, the null hypothesis for your research question. (0.5 points) 4. Write, in a full sentence, a nondirectional or directional research hypothesis for your
research question. (0.5 points) 5. Write mathematical statements (using symbols) for both the null
hypothesis (0.5 points) and research hypothesis that you stated in full
sentences above.
6. What are two health-related continuous variables that you would expect to have a positive correlation? Would you expect this correlation to be weak, moderate, or strong?