Question

Prices for vitamins and other health supplements increased over the past several years, and the prices charged by different retail outlets often vary a great deal. The following data show the prices for 13 products at four retail outlets in Rochester, New York (Democrat and Chronicle, February 13, 2005).
Use α = .05 to test for any significant difference in the mean price for the four retail outlets.


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  • CreatedSeptember 20, 2015
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