Browse one or two daily online newspapers such as The New York Times. Find an article about a research study that compared two groups. Prepare a short report that answers the following questions:

(a) What was the purpose of the research study?

(b) Identify explanatory and response variables.

(c) Can you tell whether the statistical analysis used

(1) independent samples or dependent samples, (2) a comparison of proportions or a comparison of means,

(3) a significance test or a confidence interval? Explain.