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

Essay

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.
Haslett wanted to know what percentage of students at his college vote in local elections. He asked each of his professors (he was a political science major) to ask for a show of hands in his classes, so he could make a count. He found that 45 percent of the 120 classmates polled vote in local elections. He concludes that about 45 percent of the students at his college vote in those elections.