Question: Polling the faculty A researcher wants to study the attitudes of college faculty members about the work habits of entering freshmen. These attitudes appear to differ depending on the type of college. The American Association of University Professors classifies colleges as follows:
Class I: Offer doctorate degrees and award at least 15 per year.
Class IIA: Award degrees above the bachelor's but are not in Class I.
Class IIB: Award no degrees beyond the bachelor's.
Class III: Two-year colleges.
The researcher would like to survey about 200 faculty members. Would you recommend a simple random sample, stratified random sample, or cluster sample? Justify your answer.