Interior latex paint claims one-coat coverage

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The manufacturer of Glo-More flat white interior latex paint claims one-coat coverage of 400 square feet per gallon on interior walls. A painter keeps careful track of 6 gallons and finds coverage (in square feet) of 360, 410, 380, 360, 390, 400. At α= 0.10 is there evidence that coverage is less than 400 square feet per gallon? Follow the steps for the critical value approach to test the claim. What is the critical value?

Reference no: EM131088806

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