SOLUTION: A study given in previous years showed that 25% of people voted in cities, 45% voted in rural areas, and 30% voted overseas. A most recent study of 100 persons shows that 35 of

Algebra ->  Probability-and-statistics -> SOLUTION: A study given in previous years showed that 25% of people voted in cities, 45% voted in rural areas, and 30% voted overseas. A most recent study of 100 persons shows that 35 of       Log On


   



Question 1198281: A study given in previous years showed that 25% of people voted in cities, 45% voted in rural areas, and 30% voted overseas. A most recent study of 100 persons shows that 35 of them voted in cities, 27 in rural areas, and 38 voted while overseas.
The distribution that should be used to analyze the difference in the proportions is one of the following. Which one?:
A) Normal distribution
B) T distribution
C) Chi distribution
D) Binomial distribution

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
25 35
45 27
30 38
Used Chi distribution
X%5E2+ test = 7.18, p = .0286 rounded