document.write( "Question 1055200: An 80% Confidence is being created for the population proportion. Find the Critical z value (z* is the notation in our book)
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Algebra.Com's Answer #670472 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi , Previously Posted:
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document.write( "invNorm( .80 + (1-.80)/2) = invNorm( .80 + .10) = invNorm(.90) = 1.2816
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document.write( "CI =	z = value
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document.write( "80%     z = 1.282
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document.write( "90%	z =1.645
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document.write( "92%	z = 1.751
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document.write( "95%	z = 1.96
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document.write( "98%	z = 2.326
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document.write( "99%	z = 2.576
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