Experimental Design Statistics Producing Data Experimental Design Questions How do you avoid biased questions? What is a control group? What is the purpose of a control group in an experiment? What is the purpose of blocking in some experiments? What is the purpose of a placebo group in an experiment? What is the goal of a matched pair design? What is the purpose of double blind experiments? How can an experiment show cause and effect? What is statistical significance? Question #287ce 1) How to compute income elasticity of demand using midpoint formula ? 2) Is it an inferior or a normal good ? 3) If normal good, is it a necessity or a use of luxury ? Producing Data View all chapters Sampling Techniques Observational Studies, Experiments, and Surveys Experimental Design Prev