<PRE><B>Question 1112631</B>
 In	a	Gallup	poll of	557	randomly	selected	adults,	284	said	that	they	were	
underpaid.	Construct	a	95%	confidence	interval	estimate	for	the	proportion	
of	adults	who	say	they	are	underpaid. 
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sample proportion = 284/557 = 0.5099
Margin of Error = z*sqrt(pq/n) = 1.96*sqrt[0.5099*0.4901/557] = 0.0415
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95% CI:: 0.5099-0.0415 &lt; p &lt; 0.5099+0.0415
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Cheers,
Stan H.
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