Develop appropriate null and alternative hypotheses given a research question.

Alternative Hypothesis H1: Receiving a vaccine for the flu reduces your risk of getting the virus.
The null hypotheses suggests there’s no association between getting a flu shot and protecting yourself against a virus. However, the alternative hypothesis proposes there may be an association. To test this hypothesis researchers usually conduct observational or experimental studies on individuals who received a particular type of vaccine versus others who did not. Through such analyses, it should be possible to determine if receiving a particular vaccination has any beneficial effects on reducing one’s susceptibility to catching influenza viruses. If the findings are confirmed, they could support public health efforts to encourage people to receive vaccinations to decrease their chance of contracting seasonal flu.