Question 8 and 9

QUESTION 8 Identify the sampling used ( random, systematic, convenience, stratified, or cluster sampling) in the situation described below. A man is selected by a marketing company to participate in a paid focus group. The company says that the man was selected because every 350 th person in the phone number listings was being selected. random convenience systematic stratified cluster QUESTION 9 Identify the type of study as observational or experimental. In a clinical trial of the cholesterol drug Lipitor, 288 subjects were given 20-mg doses of the drug, and 4.6% of them experienced nausea. Observational Experimental QUESTION 10