Question: Prices for vitamins and other health supplements increased over the

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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