Kristin wants to ask the managers of the fast food restaurants in a large city “How do you retain employees?” What condition must be true to justify surveying only a sample of the managers instead of surveying the entire population of managers?

Surveying a sample is justified when contacting every manager would require too much time or money. A sample can provide useful information about the managers without surveying the entire population. Therefore, the correct choice is “The population is expensive and time-consuming to survey.”

AI-written and checked against the verified answer.