Question 635420
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Hi,
Note:  z-values for various confidence levels
90%	z = 1.645
95%	z = 1.96
98%	z = 2.33
99%	z = 2.576
a) ME =  1.645(44.5/sqrt(10000)= .732
 138.5 - ME < {{{mu}}} < 138.5 + ME
b)ME =  1.96(44.5/sqrt(10000)= .873
 138.5 - ME < {{{mu}}} < 138.5 + ME
c)ME =  2.576(44.5/sqrt(10000)= 1.146
 138.5 - ME < {{{mu}}} < 138.5 + ME