Which of the following linear combinations of population means is a legitimate contrast? A) $\mu$ ₁-$\mu$ 2 /2+$\mu$ 3 /2 B) ($\mu$ 1 +$\mu$ 2 )/2+$\mu$ 3 C) ($\mu$ 1 +$\mu$ 2 )/2-$\mu$ 3 D) $\mu$ 1 -$\mu$ 2 -$\mu$ 3

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For a legitimate contrast, the sum of the contrast coefficients must be equal to 0.)

Which of the Following Linear Combinations of Population Means Is μ\muμ

Which of the Following Linear Combinations of Population Means Is $\mu$