Question 1055200
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Hi , Previously Posted:
invNorm( .80 + (1-.80)/2) = invNorm( .80 + .10) = invNorm(.90) = 1.2816
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CI =	z = value
80%     z = 1.282
90%	z =1.645
92%	z = 1.751
95%	z = 1.96
98%	z = 2.326
99%	z = 2.576
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     *[illustration critical_value.jpg]