Question
In a certain town, there are 4,000 registered voters, of whom 1,600 are Democrats. A survey...
In a certain town, there are 4,000 registered voters, of whom 1,600 are Democrats. A survey organization is about to take a random sample of 100 registered voters.
(a) There is about a 50-50 chance that the percentage of Democrats in the sample will be bigger than _____.
(b) Find the expected value for the sample percentage,
(c) Find the standard error for the sample percentage.
(d) Find the chance that 30% or more of the people in sample are Democrats.
(e) True or false: If a large sample were taken, the standard error for the sample percentage would have been smaller
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Answer #1
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