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We would like to test the claim that the mean cost for an Elementary Statistics Textbook is greater than $130. What are the null and alternative hypotheses in this problem? Identify the Type I and Type II errors for this hypothesis test.

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The null hypothesis is that the mean cost of textbooks is $130. `H_0:mu=130` .

The alternative hypothesis (and in this case the claim) is that the mean cost of textbooks is greater than $130.

`H_1:mu>130`

The null hypothesis is generally that the variable under question is as stated. The alternative hypothesis is that the variable differs in some way from what is stated. The alternative hypothesis could be that the...

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