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. In the confidence interval equation: x 21-a/2 SEX, what is the margin of error? a. Xz1-a/2 SEX b. 21-a/2 C. Z1-a/2 d. SEX

. In the confidence interval equation: x 21-a/2 SEX, what is the margin of error? a. Xz1-a/2 SEX b. 21-a/2 C. Z1-a/2 d. SEX SE

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