Thoughts on Evolution. In an article titled “Who has designs on your student’s minds?” (Nature, Vol. 434, pp. 1062–1065), author G. Brumfiel postulated that support for Darwinism increases with level of education. The following table provides percentages of U.S. adults, by educational level, who believe that evolution is a scientific theory well supported by evidence.

Education Percentage Postgraduate education 65%

College graduate 52%

Some college education 32%

High school or less 20%

a. Do you think that this study is descriptive or inferential? Explain your answer.

b. If, in fact, the study is inferential, identify the sample and population.