A candidate for one of Ohio s two U S Senate seats wishes to compare her support among registered voters in the northern half of the state with her support among registered voters in the southern half of the state A random sample of 2000 registered voters in the northern half of the state is selected of which 1062 support the candidate Additionally a random sample of 2000 registered voters in the southern half of the state is selected of which 900 support the candidate A 95 confidence interval for the difference in proportion of registered voters that support this candidate between the northern and southern halves of the state is O A 0 037 to 0 119 OB 0 050 to 0 112 OC 0 040 to 0 122 O D 0 035 to 0 127