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Find the margin of error for the given values of c, sigma, and n. cequals0.90, sigmaequals3.4, nequals81 referring to the table of common critical values.

Find the margin of error for the given values of c, sigma, and n. cequals0.90, sigmaequals3.4, nequals81 referring to the table of common critical values. Question content area bottom Part 1 E equals ? (Round to three decimal places as needed.)

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