Business Analytics Quiz
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A grocery chain will randomize stores rather than individual shoppers to test a promotion. An individual-randomization calculation indicates that 1,2001{,}200 shoppers would be required. Each store contributes 5050 shoppers, and the anticipated intraclass correlation is 0.040.04. Assume equal cluster sizes and use the design effect 1+(m−1)ρ1+(m-1)\rho.
What is the smallest whole number of stores that should be included using this approximation?
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