stats q's

Collect information from each member of the group you wish to study.

census

For tax purposes, a college president needs to know the average cost of health plans of instructors at their college.

census

A random number generator is used to choose twenty-five districts. Then a college student collects data from each person in these districts.

cluster

A school administrator interviews each member from each of the fifteen randomly chosen voting districts in a county.

cluster

A statistics student interviews each member from each of the five randomly chosen neighborhoods throughout a city.

cluster

A school administrator chooses thirty members of the sampling frame at random from each zoning district.

stratified

A scientist chooses ten people at random from each class.

stratified

First, the population is subdivided by class. Then a political strategist uses a random number generator to select ten members from each class to study.

stratified