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A laboratory claims that the mean sodium level, u, of a healthy adult is 138 mEq per liter of blood. To test this claim, a
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The null hypothesis: H0: The alternative hypothesis: H1: The type of test statistic: (Choose one)ZtChi squareF and the degrees of freedom The value of the test statistic: (Round to at least three decimal places.) The two critical values at the .01 level of significance: (Round to at least three decimal places.) and Can we conclude that the population mean adult sodium level differs from that claimed by the laboratory? Yes No | p x s p |
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