Statistics Solutions

[See Steps] Suppose you need to use this sample information: n=50, x̄=58.2, s=20 to test whether the true mean is different from 56 . Which of the following

Question: Suppose you need to use this sample information: \(n=50, \bar{x}=58.2, s=20\) to test whether the true mean is different from 56 . Which of the following pairs of hypotheses \(((\mathrm{A}),(\mathrm{B})\), or \((\mathrm{C}))\) is correct. What is wrong with the other two?

\[\begin{aligned} &(A) H_{0}: \mu=56 \text { versus } H_{a}: \mu \neq 56 \\ &(B) H_{0}: \mu=56 \text { versus } H_{a}: \mu=58.2 \\ &(C) H_{a}: \mu=56 \text { versus } H_{a}: \bar{x} \neq 56 \end{aligned}\]

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