Evaluate the Following Generalization(s), Identifying Sample, Population, Attribute of Interest

Evaluate the following generalization(s), identifying sample, population, attribute of interest, and the extent to which the claims involved are knowable. Consider carefully the size and diversification of the sample and the extent to which the population differs or may differ from the sample; remember, what's important is that the sample be representative.
Seventeen percent of Winchell State students intend to pursue careers as computer programmers or analysts. That's what a recent survey of WSU students conducted by psychology major Jack Nafarik shows. Nafarik passed out questionnaires to students who voted in the March student election as they exited from the polling stations in the student union. "The results didn't surprise me," Nafarik said. "The figure may seem fairly high, but you'd expect that in a technical school like Winchell State."