Question 1
Following the Republican National Convention, a poll of 500 voters in a Central Illinois community showed that 59% expected the Republican ticket to win over the Democrat ticket no matter whom the Democrats chose for vice-president. The margin of error was 3 percentage points. There are 21,000 registered voters in the community. What is the range likely to contain the population parameter?
◦ 11,760 to 13,020
◦ 280 to 310
◦ 20,500 to 21,500
◦ 56% to 62%
Question 2
Following the Republican National Convention, a poll of 900 voters in a Central Illinois community showed that 64% expected the Republican ticket to win over the Democrat ticket no matter whom the Democrats chose for vice-president. The margin of error was 3 percentage points. There are 28,000 registered voters in the community. What is the range likely to contain the number of voters who expected the Republican ticket to win?
◦ 61% to 67%
◦ 549 to 603
◦ 27,424 to 28,576
◦ 17,080 to 18,760
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