# math

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(a) Determine the level of confidence given the confidence coefficient z(á/2) for z(á/2) = 1.65.

(b) Determine the level of confidence given the confidence coefficient z(á/2) for z(á/2) = 1.93.

(c) Determine the level of confidence given the confidence coefficient z(á/2) for z(á/2) = 2.17.

(d) Determine the level of confidence given the confidence coefficient z(á/2) for z(á/2) = 2.41.

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