A Group of Researchers Conducted a Study to See If

question 16

Essay

A group of researchers conducted a study to see if intravenous drug users (IDUs) have lower CD4+ cell counts at initiation of antiretroviral therapy compared to non-IDUs. CD4+ cell counts are known to have skewed distributions. Provide the appropriate statistical test along with the corresponding null and research hypotheses for investigating differences in CD4+ cell counts between the two groups.

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Definitions:

Rewrite

To express something in a different form or manner, often with the aim of clarification or simplification.

Rational Exponents

An exponent that is a fraction, where the numerator indicates a power and the denominator indicates a root.

Rewrite

The act of expressing something in a different way or form, especially to clarify or simplify it.

Radical Expression

An expression that includes a square root, cube root, or higher root symbol.