A fourth grade class of 28 students is given a standardized math test. The mean score of the boys is compared to the mean score of the girls. Which statistic is being studied? A) $\overline{x}$ B) $\overline{d}$ C) $\overline{x}_{1}$ - $\overline{x}_{2}$ D) $\mu$₁ -$\mu$₂

Question

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The statistic being studied is the difference between two means ($\overline{x}_{1}$ - $\overline{x}_{2}$), which compares the mean score of the boys to the mean score of the girls.

A Fourth Grade Class of 28 Students Is Given a Standardized