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 1198280: 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.
Which of the following best describes the null hypothesis if the researcher wants to test if the proportions between the new and old studies differ?
A) The proportions between the studies are the same.
B) The proportions between the studies are different.
C) The proportions of the old study are greater.
D) The proportions of the old study are lesser than the new.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
25 35
45 27
30 38
Used X%5E2+ test = 7.18, p = .0286 rounded
Which of the following best describes the null hypothesis
if the researcher wants to test if the proportions between the new and old studies differ?
A) The proportions between the studies are the same.