Question

The CDC has been in touch and asked for help. They updated their research and tested another sample of 200 people within your age group (19 – 24). who had tested positive for COVID. 100 of the people in the study were VACCINATED and the other 100 were NONVACINATED. They examined each of these cases and rated the SEVERITY of their symptoms on a continuous 10-point ratio scale; 0 = asymptomatic and 10 = needing a ventilator. Here is the data.

Overall Mean Severity for all 200 = 6.3

Overall Standard Deviation for all 200 = 2.7

VACCINATED group mean severity = 2.5

NONVACCINATED group mean severity = 8.0

What is the severity area between the NONVACCINATED and VACCINATED? How do you interpret these findings?

Answer 1

The severity area between nonvaccinated and vaccinated individuals demonstrates a substantial difference in COVID symptom severity scores, with the vaccinated group showing much lower severity, indicating vaccine effectiveness.

Step-by-step explanation:

The severity area between the nonvaccinated and vaccinated groups refers to the difference in the mean severity of COVID symptoms between the two groups. The vaccinated group has a mean severity score of 2.5, whereas the nonvaccinated group has a much higher mean severity score of 8.0 out of a possible 10. This significant difference suggests that vaccination is effective in reducing the severity of COVID symptoms.

The overall mean severity score for all 200 individuals studied was 6.3, with a standard deviation of 2.7. When comparing the two groups directly, we see a stark contrast, indicative of the protective effects of the vaccine against severe symptoms of COVID. This interpretation is based on the assumption that the sampling and data collection were done correctly and that other factors that could influence the severity of symptoms were controlled for in the study.