Suppose that a gourmet food magazine wants to know how its readers feel about serving beer with various types of food. The magazine sends surveys to 1000 randomly selected readers. Explain which one of the “difficulties and disasters” in sampling the magazine is most likely to face.
Answer to relevant QuestionsExplain the difference between a low response rate and a volunteer sample. Explain which is worse, and why. Explain whether a survey or a randomized experiment would be most appropriate to find out about each of the following: a. Whether there is a relationship between height and happiness b. Whether a public service advertising ...a. Explain why blinding is used in experiments. b. Explain why it is not always possible to make an experiment double-blind. You may refer to an example in the chapter if it makes it easier to explain. Read News Story 12 in the Appendix, “Working nights may increase breast cancer risk.” The story describes two separate observational studies, one by Scott Davis and co-authors and one by Francine Laden and co-authors. ...Read News Story 8 in the Appendix, “Education, kids strengthen marriage.” Discuss the extent to which each of these problems with observational studies may affect the conclusions based on this study: a. Confounding ...
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