Question

You hire a firm to contact individuals about water quality. When contacted by phone, each individual is invited to participate in what you are calling the "National Water Quality Attitude Survey." When people agree to participate they are asked six questions. Based on their answers, those who indicate that they are concerned about water quality are asked, at the end of the interview, if they would like see a demonstration of a home water purification system, available only to them because they answered the survey questions. This approach to promoting the water purification system would be considered ethical.

Answer

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