Question 1198503
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{{{ME = z*sigma/sqrt(n)}}}    = {{{ME = 1.645*16.3/sqrt(1077)}}} = .817
27.7- .817 < {{{mu}}} < 27.7 + .817
26.883 < {{{mu}}} < 28.517

 = CI	z = value
90%	z =1.645
92%	z = 1.751
95%	z = 1.96
98%	z = 2.326
99%	z = 2.576
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