Sampling and Experiments

Front

Taking a SRS from three homogenous groups

Back

Stratified

Front

Taking a SRS of three diverse groups

Back

Cluster

Front

Undercoverage in a survey produces

Back

bias

Front

A A random sampling method is generally

Back

unbiased

Front

Which method is best? Options: SRS, cluster, stratified, it depends on the context

Back

it depends on the context

Front

Random assignment of treatments reduces

Back

bias

Front

Sources of variation in an experiment that are planned.

Back

factors

Front

Using a placebo helps reduce

Back

bias

Front

You should block by gender if you suspect the response to treatments is:

Back

very different between genders

Front

An observational study can NOT suggest

Back

cause and effect