Without using technical language, explain the difference between observational and experimental studies to someone who has not studied statistics. Illustrate with an example, using it also to explain the possible weaknesses of an observational study.
Answer to relevant QuestionsGive an example of a scientific question of interest for which it would be unethical to conduct an experiment. Explain how you could instead conduct an observational study. The last four teams of the Southeast region of the 2011 NCAA Men’s Basketball Tournament were Butler (located in Indiana), Brigham Young University (located in Utah), Florida, and Wisconsin. The sports Web site espn.com ...“Playing video games not so mindless.” This was the headline of a CNN news report 16 about a study that concluded that young adults who regularly play video games demonstrated better visual skills than young adults who ...You want to conduct an experiment with your class to see if students prefer Coke or Pepsi. a. Explain how you could do this, incorporating ideas of blinding and randomization, (i) with a completely randomized design and (ii) ...Explain whether an experiment or an observational study would be more appropriate to investigate the following: a. Whether or not smoking has an effect on coronary heart disease b. Whether or not higher SAT scores tend to be ...
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