SOLUTION: A study involves 646 randomly selected deaths, with 25 of them caused by accidents. Construct a 98% confidence interval for the true percentage of all deaths that are caused by acc

Algebra ->  Probability-and-statistics -> SOLUTION: A study involves 646 randomly selected deaths, with 25 of them caused by accidents. Construct a 98% confidence interval for the true percentage of all deaths that are caused by acc      Log On


   

Question 880343: A study involves 646 randomly selected deaths, with 25 of them caused by accidents. Construct a 98% confidence interval for the true percentage of all deaths that are caused by accidents.
a. 1.91% < p < 5.83%
b. 2.38% < p < 5.36%
c. 2.10% < p < 5.64%
d. 2.62% < p < 5.12%
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p = 25/646 = .0387
ME = 2.326sqrt%28.0387%2A.9613%2F646%29 = .0177
CI: .0387-ME < u < .0387 + ME
c. 2.10% < p < 5.64%