Conserving energy. Example 9.5 describes an experiment to learn whetherproviding
Chapter 0, Problem 9.8(choose chapter or problem)
Conserving energy. Example 9.5 describes an experiment to learn whetherproviding households with electronic meters or charts will reduce their electricityconsumption. An executive of the electric company objects to including acontrol group. He says: It would be simpler to just compare electricity use lastyear (before the meter or chart was provided) with consumption in the same period this year. If households use less electricity this year, the meter or chart mustbe working. Explain clearly why this design is inferior to that in Example 9.5.
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