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A researcher in interested in whether students who are musicians have higher intelligence test scores than students in the general population. The researcher predicts that playing a musical instrument is associated with higher intelligence test scores. This is a _-tailed test and the zcv is _.

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tarnation tarnation

Today at 9:52 AM

It's two-tailed, as it's testing whether one group's grades are greater than the other. The zcv is +/-1.96. :)

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