SOLUTION: If a sample of 600 people is selected and the researcher decides to have a maximum error of the estimate of 4% on the specific proportion who favor gun control, find the degree of

Question 1194438: If a sample of 600 people is selected and the researcher decides to have a maximum error of the
estimate of 4% on the specific proportion who favor gun control, find the degree of confidence. A
recent study showed that 50% were in favor of some form of gun control.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
half-interval is z*sqrt(p*(1-p)/n)=0.04
p=0.5, z is unknown
0.04^2=z^2*0.5*0.5/600
0.0016*600=z^2*0.25
z^2=3.84
z=1.96
95% confidence
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