SOLUTION: In a random sample of 250 voters interviewed while exiting from polling places throughout a state, 145 said they voted for the reelection of the incumbent governor. Let p denote th

Algebra ->  Probability-and-statistics -> SOLUTION: In a random sample of 250 voters interviewed while exiting from polling places throughout a state, 145 said they voted for the reelection of the incumbent governor. Let p denote th      Log On


   

Question 929470: In a random sample of 250 voters interviewed while exiting from polling places throughout a state, 145 said they voted for the reelection of the incumbent governor. Let p denote the true proportion of all registered voters in the state who would vote for the incumbent governor. A 90% confidence interval for p is

A .58 ± .051

B .57 ± .036

C .51 ± .080

D .517 ± .249

E .58 ± .061
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p = 145/250 = .58
.......
ME = 1.645(sqrt(.58*.42/250)) = .051
CI: .58 ± .051
A.