SOLUTION: In a survey of 250 Voters prior to election, 16% indicated that they would vote for the ABC candidate. Estimate with 90% confidence the population proportion of voters who support

SOLUTION: In a survey of 250 Voters prior to election, 16% indicated that they would vote for the ABC candidate. Estimate with 90% confidence the population proportion of voters who support

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Question 1181891: In a survey of 250 Voters prior to election, 16% indicated that they would vote for the ABC candidate. Estimate with 90% confidence the population proportion of voters who support the ABC?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
the half-interval is z(0.975)*sqrt(0.16*0.84/250)
=1.96*0.0232=0.0454
(0.1146, 0.2054)
also STATS TEST A 1-PropZInt
using x=40 and n=250 (40/250)=0.16
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