SOLUTION: In a survey of 250 Voters prior to the election, 16% indicated that they would vote for the ABC candidate. Estimate with 90% confidence the population proportion of voters who supp
Algebra ->
Statistics
-> Normal-probability
-> SOLUTION: In a survey of 250 Voters prior to the election, 16% indicated that they would vote for the ABC candidate. Estimate with 90% confidence the population proportion of voters who supp
Log On
Question 1177087: In a survey of 250 Voters prior to the 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(0.95)*sqrt(p*(1-p)/n)
=1.645*sqrt(.16*.84/250)
=0.038
The interval is (0.122, 0.198), equidistant from the point estimate of 16%
A tree diagram would be very difficult with 250 voters.
