A political scientist surveys 28 of the current 106 representatives in a state's congress. Of them, 14 said they were supporting a new education bill, 12 said there were not supporting the bill, and 2 were undecided.
Who is the population of this survey?
What is the size of the population?
What is the size of the sample?
Give the statistic for the percentage of representatives surveyed who said they were supporting the education bill.
If the margin of error was 5%, give the confidence interval for the percentage of representatives we might we expect to support the education bill and explain what the confidence interval tells us.
Lee et al., Math in Society, §3.1 Overview of the Statistical Process, Exercise 5