A local government wants to determine whether taxpayers support increasing local taxes to provide more public funding to schools. They randomly select 500 schoolchildren from a list of all children enrolled in local schools and then survey the parents of these children about possible tax increases.
a. What is the population of interest for the local government?
b. What sampling frame did the government use for the survey?
c. Explain why the problem called "using the wrong sampling frame" might lead to a biased estimate of taxpayer support for increasing taxes.