In a certain city, there are 3,000,000 registered voters, of whom 1,200,000 are Democrats. A survey organization is about to take a random sample of 1,000 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 41% 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.