We will now compute the Error for a Confidence interval by hand, using: pq = za/2 Since we're looking for a 95% Confidence Interval, let Za /2 = 1.96. pq = 1.96 30 pq E = za %3D /2 n ||

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A: Given Information: Sample size (n) = 22  Mean (u) = 12 Standard deviation (s) = 5.4

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