Question 1198519
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{{{ME = z*sigma/sqrt(n)}}}    = {{{ME = 1.645*14.1/sqrt(67)}}} = 2.837 ( accurate to 3 decimal places)
42.3-2.837 < {{{mu}}} < 42.3 + 2.837
CI(39.463, 45.137)


 = 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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