2.How do environment factors affect response rates in personal interviews? How can we overcome these environment problems?
3.Assums you are planning to interview shopping mall about their views on increased food prices and federal government should do about them. In what different ways might you try to motivate shoppers to cooperate in your survey.
4.In recent years, in-home personal interviews have grown more costly and more difficult to compete. Suppose, however , you have a project in which you need to talk with people in their homes. What might you do to down costs and increase response rate.