When a researcher needs to compare means for a variable grouped into two categories based on some less-than interval variable, a(n) _____ is appropriate. A) p-test B) t-test C) c² test D) univariate test

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A t-test is appropriate for comparing means of a variable grouped into two categories based on some less-than interval variable. The p-test is not a standard statistical test, and the c² test and univariate test are not relevant to this context.

When a Researcher Needs to Compare Means for a Variable