Statistics Lesson 1.3
Poll each member of the entire sampling frame
Census
A scientist chooses twenty people at random from each neighborhood.
Stratified Sampling
A statistics student chooses thirty members of the sampling frame at random from each zoning district.
Stratified Sampling
For budget purposes, a college president needs to know the average salary of instructors at their university.
Census
A random number generator is used to choose fifteen districts. Then a quality assurance analyst collects data from each person in these districts.
Cluster Sampling
A random number generator is used to choose fifty districts. Then a college student collects data from each person in these districts.
Cluster Sampling
A random number generator is used to choose fifty zip codes. Then a crime researcher collects data from each person in these zip codes.
Cluster Sampling
A pollster interviews the first fifty members to leave.
Convenience Sampling
A scientist interviews the last five attendees to leave.
Convenience Sampling
A college president randomly generates student identification numbers in order to conduct a survey about campus housing.
Simple Random Sampling
A college student selects five hundred student IDs from his campus using a random number generator to find the amount of student aid each receives.
Simple Random Sampling
A market researcher gathers data from fifty stores by assigning each store an ID and selecting IDs using a random number generator.
Simple Random Sampling
A pollster interviews fifty voters from a district by randomly selecting the addresses with a random number generator
Simple Random Sampling
A quality assurance analyst randomly selects the registration number of one hundred consumers to determine their satisfaction with a product.
Simple Random Sampling
A school administrator selects fifty students by randomly selecting names out of the list of all students enrolled.
Simple Random Sampling
A pollster chooses ten people at random from each neighborhood.
Stratified Sampling
A school administrator chooses thirty members of the sampling frame at random from each zoning district.
Stratified Sampling
A pollster interviews every fifteenth member from the entire sampling frame.
Systematic Sampling
A scientist chooses thirty members of the sampling frame at random from each class.
Stratified Sampling
